Develop Bugs

Battery Consumption Questions

Hi guys,
I have to say, compared to my HTC Hero and Modaco 3.2 rom, the battery life on the Desire seems pretty poor to say the least.
Do you have any tips? I know there are mixed views on task killers but whats the general consensus? Seems like every app that gets opened, seems to stay open forever or atleast open in the background on this thing. Is that good or bad?
Does the Gmail app which is push based I believe consume less battery than say the HTC Mail app used to sync about every half an hour?
Have you discovered any particular HTC apps that drain more battery than normal?
I've already disabled Facebook and Friendstream completely, use seperate apps for those.
It just feels like the battery eats away even when the phone is just sat there with the screen off, sure I have 3G on but Twicca is the only thing set to update every half an hour in the background and the Gmail app on push no doubt.
Any tips?

pretty sure if u slightly decrease the brightness of the screen and stop all data connections unless you want to run them will help the battery life

disable live wallpapers
disable auto updates
disable 3G (just for the sake of trying)
decrease the brightness or make it auto (dont put it to the max)
put plain black wallpaper as background (trust me it consumes 40% less than the colored wallpaper, again, do it just for the sake of trying)
try this for one day and see if you get anything different

I have the brightness set really low, don't use live wallpapers.
I would disable 3G but that kind of defeats the purpose of having twitter updates and stuff, one of the main features of the phone.
Just checked and Twicca is only set to update once an hour, this is really weird.

Arthur Hucksake said:
I have the brightness set really low, don't use live wallpapers.
I would disable 3G but that kind of defeats the purpose of having twitter updates and stuff, one of the main features of the phone.
Just checked and Twicca is only set to update once an hour, this is really weird.
Click to expand...
Click to collapse
I saw somewhere that you can see what app is draining your battery life in the notification bar, just open the notifications bar and go to battery, and see if you find anything related there

I have the phone for 3 days and I'm still in the stage where I play with it all the time.
Day 1: fully charged at 1PM, used the phone pretty much non-stop till 10PM and finally plugged it in with 3% left;
Day 2: unplugged the phone at 8AM, had it in stand-by for couple hours, then used it non-stop for 2 hours, then 4 more hours of stand-by, then it 2 hours continous use. The rest was more or less stand-by. Plugged it in at 10PM with around 10% left.
Day3: used it quite a bit on and off during the day, still have 34% left.
I don't do any fancy power saving, though I don't like apps updating themselves, except for mail. However, I use WiFi when I can and I listen to podcasts whenever I walk/drive somewhere.
It's a bit too early to draw conclusions, but at this point I'd say that Desire's battery life is much better than G1's (I had 1600 mAh battery).
Of course it all depends on particular use case. Also, maybe the network is spotty in your area - that might drain a lot of battery.

A positive battery story....

I let my phone discharge fully till it turned itself off!
Charged it for 4 or 5 hours.
Now I used it to make 3 short calls (5mins each) and send 10 or so texts, and surf for about 5 minutes, use google sjy mpas for 5minutes, showcase some video to some friends 2mins, general messing 10mins altogether.
Phone is up 40hours now (since charge) and still at 80%. I am very impressed.
I put it to airplane mode between 12am and 7am though as I don't like to be woken by drunk friends texts at 2am etc. (it happens sometimes).
I think those of us (me included) who slated the battery life originally didn't relaise we were using the phone non-stop pretty much for the entire day, trying out all the features on it. I doubt the first week of use will be "typical use" for ANY user
Happy Days

My battery on day one seems fine, 12.5 hours running so far, screen at 100%, everything on automatic syncing (and I mean everything, Weather, Twitter, FB, Gmail etc), continuous WiFi connection throughout, plenty of "first day" playing around and still sitting at something like 20%. With a few more charges and more typical use will last a day just fine, which is all I ask, since I always charge my phones overnight...

When i got my phone i let it run out as it had half power, i overcharged it a few hours then let it die, then i do the same again but not overcharge it and let it die. Now i charge it when i need to but i seem to be getting 3 days worth with usage out of it and i use gps, web and have things on auto. Seems to be much better than when i first had it as the battery didnt even last a day but now its past 2 days.
I assume with newer firmwares etc this will improve

My battery life seems to get worse. I charged it fully ... it has been on for 6 hours and I have put 3g on for a while (1hour max and i barely have used it) and my battery is already 60% ... is that poor?? This is my second phone as well!!!

mcgon1979 said:
I let my phone discharge fully till it turned itself off!
Charged it for 4 or 5 hours.
Now I used it to make 3 short calls (5mins each) and send 10 or so texts, and surf for about 5 minutes, use google sjy mpas for 5minutes, showcase some video to some friends 2mins, general messing 10mins altogether.
Phone is up 40hours now (since charge) and still at 80%. I am very impressed.
I put it to airplane mode between 12am and 7am though as I don't like to be woken by drunk friends texts at 2am etc. (it happens sometimes).
I think those of us (me included) who slated the battery life originally didn't relaise we were using the phone non-stop pretty much for the entire day, trying out all the features on it. I doubt the first week of use will be "typical use" for ANY user
Happy Days
Click to expand...
Click to collapse
I thought a full charge only required 3 hours..?

Anyone having surprisingly short battery life go into the phone keypad and dial in *#*#4636#*#*, when you key in that last * you will be taken to a testing menu (I've added a contact with this number and when in the dialer I can long press on the number as select edit number before calling to take me to this screen)
In this menu there are options to see phone and battery information as well as usage statistics for apps. The best battery option is "battery history" this shows you what apps are using your battery for various things such as network and processor usage. You can see this data for since you last rebooted your phone, unplugged it or for the whole life of the phone.
The first important part is "other usage", "running" shows you the percentage of the time your phone has been awake and doing stuff, "screen on" is the percentage of time your screen has been on, the difference between these two is when your phone has the screen is turned off but the phone is still working such as when syncing. Ideally you want these two percentages to be as close together as possible but it depends on how much syncing you have going on automatically in the background. If your running percentage is at or near 100% then an app is keeping your phone awake and using battery.
Next we have "partial awake use", this is what as been running in the background when you have the screen turned off and any apps that process or sync in the background would be listed here, the longer the bar, the bigger the drain on your battery. On my phone now the biggest bar by far is android system but it is still only small.
With "sensor usage" this is what has been using your sensors, games that use the sensors will feature heavily here.
"Gps usage" is again pretty self explanatory, whatever has been using gps.
"Network usage" was a real eye opener for me, I found out that an app was downloading megs of data all day and dwarfed all the other bars and was the reason for my bad battery life. Here the blue part of the bar is download and the red part is upload.
And lastly "cpu usage" on mine these are all practically non-existent but if anything is using massive amounts of processing it will show up here.
I only found out about this the other day but it has helped my battery life substantially, I used to take it off charge in the morning and be down to around 60% by lunch time, now I'm at 98%. I did this by uninstalling any apps that used too much battery and that I didn't really use very much as well as the vampire apps that were running and syncing continuously in the background, I also reduced the frequency at which some of my services such as stocks, email and weather synced, and used it on a low brightness when possible.
This is my first android device and I can now happily use it without the fear of running out of battery before the days end

Wow, thanks andybut85, that was a very informative post!

If you download Spare Parts from the Market it gives you access to the same info - instead of 'dialing' to test mode.

andybut85 said:
Next we have "partial awake use", this is what as been running in the background when you have the screen turned off and any apps that process or sync in the background would be listed here, the longer the bar, the bigger the drain on your battery. On my phone now the biggest bar by far is android system but it is still only small.
Click to expand...
Click to collapse
My biggest is "Calendar" (54mins from Boot, compared to 1min for Andriod System!)
What Calendar could this be? Im syncing from Google Calendar, so will it be that? If so, wouldnt my email syncing show up as constantly on too?
Or could it be some other App that is making it run constantly?
Any help gratefully received.

myk202020 said:
My biggest is "Calendar" (54mins from Boot, compared to 1min for Andriod System!)
What Calendar could this be? Im syncing from Google Calendar, so will it be that? If so, wouldnt my email syncing show up as constantly on too?
Or could it be some other App that is making it run constantly?
Any help gratefully received.
Click to expand...
Click to collapse
Have a look for "Total in all time" with mine the calendar is roughly half that of android system, it could be that recently your calendar has had to sync for a long time, this could be a one off or if it's still high for the total time it could be a deeper problem. You could also try rebooting and seeing if it occurs again.

Have a look for "Total in all time" with mine the calendar is roughly half that of android system, it could be that recently your calendar has had to sync for a long time, this could be a one off or if it's still high for the total time it could be a deeper problem. You could also try rebooting and seeing if it occurs again.
Click to expand...
Click to collapse
Calendar: 1day 7hrs
Android: 5hours
I'm thinking some app I've put on yesterday is not letting it sleep. will uninstall stuff one by one and see how it goes.
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk
Click to expand...
Click to collapse

I'm still having problems with battery drain.
My Desire will not last a day
Installed Juiceplotter to find out when and why my battery drops so fast.
See attached image.
The battery drains very fast when i USE the phone, so when the screen is on. (20% in one hour)
I have two push email account activated, one with the HTC Exchange, and one with TouchDown.
But that doesn't explain the drops when phone is active.
Anyone else having this kind of batterydrain ?

I have positive "story" about battery too. Im on second charging. Saturday at 1:00 Im unplug it from charger and now 34h later Im on 7/10 battery.
Im make few calls(cca. 10 calls long 1-3min), few times(cca. 3-5x) check emails accounts(4 pop3 email accountes), quick test sygic navigation, little search on market(install calendar widget and some other app), and play few levels of Teeter...
3G is turned ON
GPS, WIFI is turned OFF
Also automatic sync is for most things disabled or setup to sync 1x per day...

Hmm Can't say I'm impressed by my battery life... it dropped 20% overnight..
I''ll keep an eye out on what's running and see if i can fine tune, but turning things off seems to be a bit pointless as it is made for use not just sit on a desk being pretty.
regards
Kef

i got great battery life at home over the weekend connected to my wi-fi network.. i have a feeling its the crappy edge reception in my office thats eating into battery life during the week..

micks_address said:
i got great battery life at home over the weekend connected to my wi-fi network.. i have a feeling its the crappy edge reception in my office thats eating into battery life during the week..
Click to expand...
Click to collapse
yep, that sounds highly plausible. Bad or weak connections to the network (especially mobile internet connections) will really drain a battery as the phone needs to use more power to maintain adequate connection strength.
you can check your signal strength in the "settings / network strength" section. I notice in good 3G areas my connection is -95dBm or higher. At work (which is in some sort of black spot in Dublin) I only get EDGE connection and my signal strength is about -80 to -85dBm. I bet this makes a big difference to battery life, especially if I try browsing or data connection.

my signal strength at work is -91 dbm...
i'm guessing bigger numbers are worse?
mcgon1979 said:
yep, that sounds highly plausible. Bad or weak connections to the network (especially mobile internet connections) will really drain a battery as the phone needs to use more power to maintain adequate connection strength.
you can check your signal strength in the "settings / network strength" section. I notice in good 3G areas my connection is -95dBm or higher. At work (which is in some sort of black spot in Dublin) I only get EDGE connection and my signal strength is about -80 to -85dBm. I bet this makes a big difference to battery life, especially if I try browsing or data connection.
Click to expand...
Click to collapse

spare parts showed me that "media" was using the network a lot, bowever i cant work out what this corresponds to, it says DRM protected content storage, download manager and media storage. shows as having downloaded several megs
i use spotify for music, anyone any ides what these could be?
thanks

only guess but i'd say its spotify.. i have used servcies like that in the past on my pc.. and they sometimes have a lot of downloading going on that you dont even ask for!... worth checking out..
kinkade said:
spare parts showed me that "media" was using the network a lot, bowever i cant work out what this corresponds to, it says DRM protected content storage, download manager and media storage. shows as having downloaded several megs
i use spotify for music, anyone any ides what these could be?
thanks
Click to expand...
Click to collapse

micks_address said:
only guess but i'd say its spotify.. i have used servcies like that in the past on my pc.. and they sometimes have a lot of downloading going on that you dont even ask for!... worth checking out..
Click to expand...
Click to collapse
yes it could be, but spotify also comes up as a separate user of resources and i tested it since unplugging when spotify wasnt running and "media" still comes up as the biggest user.
makes me think that its not spotify

Battery Issues, Uptime = Awake, Google Calendar

Hi,
I am having severe problems with battery life where Uptime is equal to Awake or at least very very close to it. I kill Calendar (calendar.bg process) each time after starting the phone, and still I suffer from problems. Today my battery died from 100 to 25 in 7 hours, and I removed both Flickr and killed Google Calendar Sync process again. I've noticed that too many times Google Calendar sync icon in the Google Content Provider window is turning around while there aren't any changes of Google Calendars I've made.
Is it possible and a good solution overall to turn off syncing Calendar via Google content provider and instead configure a Exchange with Google Sync?

I am not sure about calender killing but I just use juicydefender and thgat has massively improved my battery life to over double the time..... might be worth trying that....

I use JuiceDefender as well (UltimateJuice edition) but despite that my phone has died today, so far it is around 9% and I have absolutely no idea why it's dying so fast.
I think I must have some application that prohibits my phone from going into sleep mode. I turned off Flickr completely (I use PicPush to push photos online), I just removed Fring and eBuddy from my phone (I think the culpit may be eBuddy but not really sure). I use Executive Assistant although without Twitter/Facebook pulls.
My Twitter pull is 2 hours. My Facebook pull is 4 hours. I use both internal Sense Peeps and external Twitter for Android content providers because I like to have Peep tweets into my Contact List, althought I am looking for feedback if this is eating too much battery.
Anyway the major sync problem is the Calendar. IT'S TAKING AGES AND ALMOST EVERY TIME I GO TO SYNC WHEN PHONE IS SYNCING, IT'S CALENDAR THAT ROLLS ITS PROGRESS ICON TO NO END. I have no idea why HTC is doing this travesty with its phones, and absolutely no idea how to make Calendar behave on my phone.
Anyway, I ordered MUGEN 3200 MAh battery as a long-term solution. 7mm on the phone's width won't be the best thing to have but it is something I'll get used to if I want to have a phone that lives through a day even if used.

WHAT THE HELL!?
I have turned off Google Calendar sync, and configured Google Sync as Exchange for Calendar events only. Despite the fact, I've noticed the turning circle of sync progress in front of Google Calendar sync (in Google Account) even if it is unchecked. I am totally lost now, what can I do to resolve this?
My next Android may not be HTC.

Hmm - I had exactly the same problem, 'Calendar' using up most of the partial wake. However I'm not convinced it is really the Google Calendar itself causing the problem. I've still got the Agenda widget installed but switched off syncing for the 'Stock' app (as I never use it anyway) and also deleted my Flickr account from the phone - even after a few reboots that still seems to have done the trick and the Calendar partial wake is now miniscule and battery life has shot up.
Do you want to try removing your Flickr account completely and see if that helps?
I've already raised a ticket with HTC about this (and a few other issues). They weren't that helpful when I first emailed them, they've been much better since I phoned them and asked for it to be escalated to a level 2 agent. I'm now getting pretty much daily updates from their agent. They asked me to remove the Agenda widget to see if it helped but now I don't have the problem it's difficult to try these things out - I'm sure they'd be happy to work with you. After you've logged the issue then feel free to PM your email +/- ticket number and I can update my ticket to ask them to run through the troubleshooting with you too.

I have the same issue with my Desire, I don't know how the battery life can be this bad to be honest , but from what I have heard from the latest update the battery life has been really bad for a lot of people, but some others have been lucky.
I have emailed HTC, so lets see what they have to say. Looks like we may have to wait for the next software update so they can resolve this issue.
Other than that I love my Desire and am extremely happy with it

alanjrobertson said:
I've still got the Agenda widget installed but switched off syncing for the 'Stock' app (as I never use it anyway) and also deleted my Flickr account from the phone
Click to expand...
Click to collapse
Meanwhile I did this:
I did a factory reset of the phone today, and reinstalled some of the apps I really use and none of those I just kept for rare occasions. I cut down apps that have processes as well.
I turned off Internet Time as I saw online it improved battery time. I don't sync Stocks. I do sync Weather however.
I did not add Flickr account.
I use Pure Calendar that uses the standard Calendar content provider. So I cannot turn off the content provider yet. I know Agenda but its not as good as Pure Calendar. But I did add Calendar content via Exchange. I noticed Exchange sync to be much much faster than the old dragging for a minute or two Google content provider calendar sync.
My battery dies to 95 over couple minutes. I guess calibration is screwed through factory reset as well, I should have never updated with the OTA but got tempted by the Memory Management optimization.

Same here, I dony sync google calander and no flickr. My facebook and twitter are set up for 2 hours and Im using juice defender ultimate. I noticed every time I unlock my fone after the screen gone off it starts to sync even though I have set up everything including mail for 2 hours. Calendar process is used by facebook sync and twitter sync so only way to disable it is to stop your syncs but I dont wanna loose my facebook picture sync so cant do that. Hope HTC improve this in the froyo update.
I used autostarts to disable some apps from starting and its been on for 50 mins so far after full charge and im down to 97% which aint too bad but I think juice defenders night mode helps that. Before autostarts I lost 1% every 5 mins. So try that guys.

It's me again, back to report my unsuccessful phone experience today
Well, apparently factory reset and trimming down the number of apps I use did nothing to prolong my phone's life. 10:00 to 18:00, it was down to 28% and losing 1% every 10 minutes, worse when screen is on. Basically, what I figured out is that it's not some rogue app installed on my device that has been triggering this bad lifespan. I also purchased SeePU++ and was really dishearted to see 60-70% CPU when the Calendar Sync process works, and it works almost constantly no matter I've set 2-4 hours frequency to Facebook and Twitter, and I'm using Exchange for Calendars where it has two frequencies set to 2 and 4 hours peak/offpeak times.
Listening to Music isn't good as well. Using DoubleTwist android app, phone remains warm while listening. Not good. Is the phone completely awake while listening to music even if the screen is off?
I've made the following changes for tomorrow, and I'll report again:
* I turned off Wireless Network Location. Not sure whether I'd live well without it, apparently my Latitude will suffer greatly and Tasker won't be able to use its Location triggers (GPS Fix triggers kill the battery in less than 2 hours), so will other apps that use rough estimation, especially if indoors.
* I revised my UnlimitedJuice. My current profile is:
** Timeout: N/A
** Schedule: Keep APN/WIFI disabled (I removed timed schedules as I suspect it kept my device from prolonged sleep)
** Night: Keep APN/WiFi disabled 0-7am (Use it just for the silent mode, otherwise it's probably charging)
** Traffic: N/A (I used to use Traffic to keep connections alive, but decided not to due to prolonged Calendar sync)
** Peak: N/A (obviously!)
** Charger: Leave APN/WiFi enabled while charging (obviously!)
** Screen: Leave APN/WiFi enabled while screen unlocked (obviously, again!)
If anyone is familiar with UltimateJuice, please let me know whether this sounds okay?
I think a culpit was the Schedule setting, as it must have kept my device constantly out of sleep to check my email. Not that I don't want that but until I stick a Mugen 3200 MAh battery in this device, I am wary against it not sleeping well. I also turned off Traffic as Calendar Sync has the stupid tendency to restart itself despite it is not expected to based on user-set frequency. No idea how to control this, no bugfix even estimated.
I think HTC doesn't really care about the life of their phones once they sold them to us. I am also very unpleased to find out how useless those fast 1 Ghz processors are when paired with old battery tech. I am looking at HTC Wildfire and it's 30-50% better battery life with somewhat of an envy. The only company that seems to bother to do something with batteries today is Apple. I won't draw conclusions especially under affect.
I have a question to all ROM-familiar users who have gone 2.2, does JIT improve battery life (through making code run faster, maybe using less CPU resources)?

raynerape said:
It's me again, back to report my unsuccessful phone experience today
Well, apparently factory reset and trimming down the number of apps I use did nothing to prolong my phone's life. 10:00 to 18:00, it was down to 28% and losing 1% every 10 minutes, worse when screen is on. Basically, what I figured out is that it's not some rogue app installed on my device that has been triggering this bad lifespan. I also purchased SeePU++ and was really dishearted to see 60-70% CPU when the Calendar Sync process works, and it works almost constantly no matter I've set 2-4 hours frequency to Facebook and Twitter, and I'm using Exchange for Calendars where it has two frequencies set to 2 and 4 hours peak/offpeak times.
Listening to Music isn't good as well. Using DoubleTwist android app, phone remains warm while listening. Not good. Is the phone completely awake while listening to music even if the screen is off?
I've made the following changes for tomorrow, and I'll report again:
* I turned off Wireless Network Location. Not sure whether I'd live well without it, apparently my Latitude will suffer greatly and Tasker won't be able to use its Location triggers (GPS Fix triggers kill the battery in less than 2 hours), so will other apps that use rough estimation, especially if indoors.
* I revised my UnlimitedJuice. My current profile is:
** Timeout: N/A
** Schedule: Keep APN/WIFI disabled (I removed timed schedules as I suspect it kept my device from prolonged sleep)
** Night: Keep APN/WiFi disabled 0-7am (Use it just for the silent mode, otherwise it's probably charging)
** Traffic: N/A (I used to use Traffic to keep connections alive, but decided not to due to prolonged Calendar sync)
** Peak: N/A (obviously!)
** Charger: Leave APN/WiFi enabled while charging (obviously!)
** Screen: Leave APN/WiFi enabled while screen unlocked (obviously, again!)
If anyone is familiar with UltimateJuice, please let me know whether this sounds okay?
I think a culpit was the Schedule setting, as it must have kept my device constantly out of sleep to check my email. Not that I don't want that but until I stick a Mugen 3200 MAh battery in this device, I am wary against it not sleeping well. I also turned off Traffic as Calendar Sync has the stupid tendency to restart itself despite it is not expected to based on user-set frequency. No idea how to control this, no bugfix even estimated.
I think HTC doesn't really care about the life of their phones once they sold them to us. I am also very unpleased to find out how useless those fast 1 Ghz processors are when paired with old battery tech. I am looking at HTC Wildfire and it's 30-50% better battery life with somewhat of an envy. The only company that seems to bother to do something with batteries today is Apple. I won't draw conclusions especially under affect.
I have a question to all ROM-familiar users who have gone 2.2, does JIT improve battery life (through making code run faster, maybe using less CPU resources)?
Click to expand...
Click to collapse
2.2 ROMs on my Desire make my battery last even less. I lost 1% every 5 mins on any 2.2 ROM.
I get the syncing going on every time I switch screen on. no matter what I have set in the settings. I got 20% overnight between midnite and 9am while Juice Defender was on night mode.

This is very discouraging, Nekromantik. Seems like I shouldn't be as excited about the upcoming August 2.2 update, now. I don't trust HTC to resolve this problem given how every single new device is plagued (Desire/Incredible/EVO) and they do nothing about it.

raynerape said:
This is very discouraging, Nekromantik. Seems like I shouldn't be as excited about the upcoming August 2.2 update, now. I don't trust HTC to resolve this problem given how every single new device is plagued (Desire/Incredible/EVO) and they do nothing about it.
Click to expand...
Click to collapse
yeah this has made me loose faith in HTC.
Battery life should be a big factor in smartphones. I should at least expect it to last 24 hours without a charge. Which is good enough for smartphones.

Just gotta add that even though my battery life is not that good, it does show that the phone does sleep as atm in the about menu it shows that the phone been on for 3 hours and been awake for 1 hour 30 mins. Which means it is sleeping but why am I still getting bad battery life all of a sudden after reflashing from Froyo ROM? I did a full wipe including a sd card wipe before I flashed Pays ROM back on. Makes no sense to me.

I'm having a very similar problem with battery life. Android System prevents my phone from going to complete sleep but strange enough - only during night when my phone is in airplane mode.
So I decided to switch off Automatic Network Time. This helped for one night and yesterday the problem reappeared again :-(
So last night I turned off location as well services and again it seems OK for now.
During the day my battery life is OK. I guess I could keep the phone turned on during night as well (as a bypass) but this is not how a smartphone of 21st century should work.

This is a mid-day report but I think I might have finally figured it out. And it's the most ironic solution ever!
I pulled the phone off the charger in 10:00, by 11:00 I was already at 88-86% and rapidly decreasing with only minor phone call activity. Then I turned off JuiceDefender/UltimateJuice and kept using the phone for contact list adding, single profile photo shot with camera, many long calls. Now it is 14:35 and my battery is at 69% - incredibly resistant compared to what I've had by that hour with less phone activity. Also, my phone seems to sleep much longer and more often than before when I used UltimateJuice.
It appears to me now that the reason the phone has been dying on me is JuiceDefender/UltimateJuice. Apparently the latest versions destroy the battery rather than save it!! I told you it's an ironic...
I will be reporting by 19:00 with the phone's actual lifespan over the course of the day but looks like I'll have a winner today.

raynerape said:
This is a mid-day report but I think I might have finally figured it out. And it's the most ironic solution ever!
I pulled the phone off the charger in 10:00, by 11:00 I was already at 88-86% and rapidly decreasing with only minor phone call activity. Then I turned off JuiceDefender/UltimateJuice and kept using the phone for contact list adding, single profile photo shot with camera, many long calls. Now it is 14:35 and my battery is at 69% - incredibly resistant compared to what I've had by that hour with less phone activity. Also, my phone seems to sleep much longer and more often than before when I used UltimateJuice.
It appears to me now that the reason the phone has been dying on me is JuiceDefender/UltimateJuice. Apparently the latest versions destroy the battery rather than save it!! I told you it's an ironic...
I will be reporting by 19:00 with the phone's actual lifespan over the course of the day but looks like I'll have a winner today.
Click to expand...
Click to collapse
interesting.
I swear juice defender helped me during the night but I could always switch apn off during sleep. I lost 12% overnight but once I was awake I lost 6% in 45 mins while it was on standby.

It is 21:10 as I type and my battery shows 24% after moderate use day. My phone sleeps more (2 hours use for 11 hours day cycle) and it loses around 1-2% per hour when asleep.
The culpit is definitely UltimateJuice and I am at complete loss how an app meant to save battery can destroy battery.
Also, I noticed that waking my phone when UltimateJuice is not running does not trigger an annoying Calendar Sync (Sync All icon remains non-animated).

I decided to switch off mobile internet and only switch it back on when I wanted to surf/lurk on here/check mail etc. Uninstalled juicedefender but kept plotter. The amount of difference doing those things has been exponential. Before, my battery was dead in about 8 hours use. now it will last 17+. Even use it for music which I wouldn't risk when internet was always on.

For me it is the Location services and Network time that need to be switched off.
As I said I only get battery problems during night in airplane mode so I tested several settings and it seems that both Network time and Location services need to be switched off so they stop trying to update themselves.
Although I would imagine that once you switch your GSM module off that should be enough to also stop Network time and Location... Apparently my assumptions are dead wrong

I think its time to start a worldwide petition to HTC if they please could fix the problems with the battery. I cannot use my phone to call when I am not near a power source. After 15 hours the battery is down to 20% ..its so frustrating.
HTC know there are problems (perhaps the read some forums) and dont do anything about it. Thats not customer friendly.
I think Apple is more serious on that point and investigates every single way to save battery life.
Whats the use of a phone (mine is pretty basic with no specials programs on it) that could not last 1 day?
I think buyers must give a signal to HTC to take these sort of problems serious.

Desire battery observations

I know you guys might be tired of these threads but I thought I might as well post this.
My desire is fairly new(Less than a week) and so far its been good apart from(What I though) battery life. i've been trying to improve it and I think I might have "some" progress.
Currently I'm running DeFrost 4.9 with HAVS @ 1137(4.9a) kernel with the very latest radio, I also use only 2G networks(No 3G here). I got two Gmail accounts but only one has sync(The other one is merely for Google checkout CC purchases), I got one Facebook account set to sync every hour as well as LP Facebook widget also set to sync every hour. I also got FancyWidget syncing weather every 3 hours. Apart from these I got Nimbuzz running 24/7 in background. The battery is calibrated and yesterday I did a complete discharge/recharge.
Now I plugged it off the charger 2 hours ago, it was at 100 according to spare parts. The brightness is at 2%. I did some lite browsing, browsed a bit with Tapatalk Pro and 40 minutes ago went to a market nearby. During my trip to market I had Google Navigation turned on navigating me(During both, the trip to the market and return). Now while making this post the battery is at 81%. Does it sound right?

Dragooon123 said:
I know you guys might be tired of these threads but I thought I might as well post this.
My desire is fairly new(Less than a week) and so far its been good apart from(What I though) battery life. i've been trying to improve it and I think I might have "some" progress.
Currently I'm running DeFrost 4.9 with HAVS @ 1137(4.9a) kernel with the very latest radio, I also use only 2G networks(No 3G here). I got two Gmail accounts but only one has sync(The other one is merely for Google checkout CC purchases), I got one Facebook account set to sync every hour as well as LP Facebook widget also set to sync every hour. I also got FancyWidget syncing weather every 3 hours. Apart from these I got Nimbuzz running 24/7 in background. The battery is calibrated and yesterday I did a complete discharge/recharge.
Now I plugged it off the charger 2 hours ago, it was at 100 according to spare parts. The brightness is at 2%. I did some lite browsing, browsed a bit with Tapatalk Pro and 40 minutes ago went to a market nearby. During my trip to market I had Google Navigation turned on navigating me(During both, the trip to the market and return). Now while making this post the battery is at 81%. Does it sound right?
Click to expand...
Click to collapse
How much time the display was on? How much time was the GPS on?

Be careful, don't be happy before time. I did the recalibration too, and found that my phone would turn itself off at ~20% remaining battery.

venkig said:
How much time the display was on? How much time was the GPS on?
Click to expand...
Click to collapse
During the navigation, about 5 minutes for display, 40 minutes GPS during which I went into a building for 10 minutes and it probably lost signal then.
Sent from my HTC Desire using Tapatalk

OK, this ain't good. I slept at around 2 AM with 29% battery life. In the morning(10:30 AM) it was dead(0% battery).

Dragooon123 said:
OK, this ain't good. I slept at around 2 AM with 29% battery life. In the morning(10:30 AM) it was dead(0% battery).
Click to expand...
Click to collapse
Sound about right. 8.5 hours with your facebook and other syncs. I don't see any problems at all. Mine does this too.

Dragooon123 said:
OK, this ain't good. I slept at around 2 AM with 29% battery life. In the morning(10:30 AM) it was dead(0% battery).
Click to expand...
Click to collapse
First, in the night put the phone in airplane mode (I dont think u need to check ur facebook )
Second, check if u have useless programs that are using cpu in background, if is this the case UNINSTALL that program and CONTACT the developer. We dont need to kill those kinds of app, we just have to UNINSTALL if an app doesn't work properly, untill the developer will fix it. If all people will do like me, the market will full of great apps

I don't think I have any useless stuff running in the background. All I got are 2 widgets(Facebook and Twitter) syncing every 1 hour and 3 hours respectively, one Fancy Widget fetching weather and Gmail push for one account. Is their a way I can check all the services running in the BG?
EDIT : Forgot to mention Nimbuzz running 24/7.

ljesh said:
Be careful, don't be happy before time. I did the recalibration too, and found that my phone would turn itself off at ~20% remaining battery.
Click to expand...
Click to collapse
Agree... before I used to see 1% but after "calibration" now it shuts down itself at 8~9%
Sent from my HTC Desire using XDA App

Dragooon123 said:
OK, this ain't good. I slept at around 2 AM with 29% battery life. In the morning(10:30 AM) it was dead(0% battery).
Click to expand...
Click to collapse
I won't rehash all of what has been heavily discussed by now in much greater depth, like in the FroYo Battery Usage thread. But auto sync with such social applications and you set yourself up for low battery runtime to begin with. Especially with a constant polling IM and/or battery widget running too. Don't expect much.
Anyway, I don't use them but weather, stocks, 5 mail accounts and news is set to auto-sync every 15 minutes and WiFi is always running if available. Last discharge as soon as I connected charger ended at:
http://bit.ly/c6R59G
http://bit.ly/bmM9oN
http://bit.ly/cMlnun
http://bit.ly/akPvr7
I slept twice for 7-8 hours each on that charge and it includes all of my daily usage including listening to 127 minutes of MP3 via headphones with the screen off.
[images appear greeny due to a screenshot application bug when manual colour calibration is done]
-----------------------------------
- HTC Desire via XDA App -

Hmm Wi-Fi + Nimbuzz really screws up the battery . Last night I turned off the Wi-Fi and slept for 8 hours. I had 46% battery before and in the morning I had 40%. I also have disabled Auto-sync for Twitter/Facebook widget and Facebook app. Now the only running services I got are Gmail push, FancyWidget weather and Nimbuzz.
th3 said:
I won't rehash all of what has been heavily discussed by now in much greater depth, like in the FroYo Battery Usage thread. But auto sync with such social applications and you set yourself up for low battery runtime to begin with. Especially with a constant polling IM and/or battery widget running too. Don't expect much.
Anyway, I don't use them but weather, stocks, 5 mail accounts and news is set to auto-sync every 15 minutes and WiFi is always running if available. Last discharge as soon as I connected charger ended at:
http://bit.ly/c6R59G
http://bit.ly/bmM9oN
http://bit.ly/cMlnun
http://bit.ly/akPvr7
I slept twice for 7-8 hours each on that charge and it includes all of my daily usage including listening to 127 minutes of MP3 via headphones with the screen off.
[images appear greeny due to a screenshot application bug when manual colour calibration is done]
-----------------------------------
- HTC Desire via XDA App -
Click to expand...
Click to collapse
How did you manage to get such good battery life? Your phone lasted for over a 32 hours period which included 6 hours of display. And that too with stocks and News syncing every 15 minutes. Does Nimbuzz really screw you that much?

th3 said:
I won't rehash all of what has been heavily discussed by now in much greater depth, like in the FroYo Battery Usage thread. But auto sync with such social applications and you set yourself up for low battery runtime to begin with. Especially with a constant polling IM and/or battery widget running too. Don't expect much.
Anyway, I don't use them but weather, stocks, 5 mail accounts and news is set to auto-sync every 15 minutes and WiFi is always running if available. Last discharge as soon as I connected charger ended at:
http://bit.ly/c6R59G
http://bit.ly/bmM9oN
http://bit.ly/cMlnun
http://bit.ly/akPvr7
I slept twice for 7-8 hours each on that charge and it includes all of my daily usage including listening to 127 minutes of MP3 via headphones with the screen off.
[images appear greeny due to a screenshot application bug when manual colour calibration is done]
Click to expand...
Click to collapse
Well now datz some good battery. Which ROM are you using? Which Radio are you using?
I don't have any account/social networking syncing. Don't use wifi more than 20 mins a day. Brightness 20%. NO GPS. No Bluetooth. No stupid application sucking battery's power. If my screen is off I lose about 3-4% for a period of 5 hours, so no app sucking the battery in the sleep mode.
If i use EDGE when the battery is Full for about an hour I get battery drain of 20%
Would love to know more details on which ROM, Radio and your settings.

OK. There's not much I can say except what other guys who know better than me said here http://forum.xda-developers.com/showthread.php?t=743172
It's all usage/config/settings dependent. There's no secret sauce. Some setups and usages last shorter than others, yet further, some drastically shorter.
Firstly, I don't change something working well nor move from a setup until I've worked with it the best I could. The ROM I use daily is HTC 2.2 with root. The radio is some old one that worked perfect for me: 32.43.00.32U_5.09.00.20. I can give you some details so you can characterize the battery performance on mine better.
- H.264 sub 2.5Mbps 800*480 video playback at 18% brightness lasts 5.5-6.5h with about 15% remaining. This has been repeated more than 50 times since March.
- My average runtime used to be 13-18h since March but I knew something was wrong and drawing more juice than necessary. I kept looking (mainly at the logs). It took me months to figure out it was a few things including my build.prop WiFi/cell settings, A2SD+, my GMail install, battery widgets, eBuddy, Titanium Backup, Chrome2Phone, Pure Calendar/Grid widgets and my 3G baseband reception. Some app versions were buggy and constantly polling and returning random errors in the background. I had to eliminate them one by one.
I rectified such problems entirely and removed all the unnecessary apps installed which I rarely used. I had to revert back to FroYos A2SD with the install location mod. That took me to todays battery runtime which I'm very happy with. Chrome2Phone for instance could stay installed and be disconnected when not in use to avoid the large background drain it caused.
- I run personalized colour calibration with lowered overall luminance but more red and green with less blue sub-pixel luminance. Very near D6500 whites. I also keep most apps and my homescreens dark when and where possible. I disable button LEDs through a widget when not required (much).
- 24-39h is the norm for me in typical usage. Among much else that always includes a few short calls, some YouTube, some StreetView, some TapeMachine (audio record), some Scan2PDF, some Aldiko, some Chrome2Phone and Fox2Phone, some Tapatalk browsing, some XDA app browsing, some Quick App Clean Cache, some SpringPad, some Adobe PDF, max 15mins of MP3 playback, heavy net and NewsRoom browsing, 150-250 emails and messages and constant sync with what I listed priorly. Always 2G though, and whenever I reach areas I know have bad or no reception (causing high drain) that I'll be staying at for more than 10mins, I disable cell (frequently). I've nurtured the habit of putting the phone in standby after every use too.
- 6-9.5h display on aggregate is the norm for me. I use lowest brightness possible or 18% typically. 50% in very bright, direct summer sunlight. Just now the battery ran out after 26 hours with 9.2h display on, 13.5h cell on and 22h WiFi on.
- I have apps I consider junk removed: Facebook, Footprints, etc. The lot. So no sync or auto running for them or their widgets in the background. I also removed the base GMail because logs showed me it carried on running sync all the time even when not set to. I forced the latest GMail APK in and it has no such problems. I removed all battery widgets installed except one since they drain heavily.
- Heavy usage like GPS, lengthy calls, video recording and playback cuts the runtime down drastically which should be conspicuous. I can drain the battery fully in 5h with everything max and running.
-----------------------------------
- HTC Desire via XDA App -

venkig said:
[...]
If my screen is off I lose about 3-4% for a period of 5 hours, so no app sucking the battery in the sleep mode.[...]
Click to expand...
Click to collapse
In contrast, I lose 1-2% over 8-10hours in standby, maximum, with WiFi on. Usually 1%.
-----------------------------------
- HTC Desire via XDA App -

Thats some damn battery life you have there. You are on a Sense ROM? Do you actually use Sense? If so you're either exaggerating or I'm a total fool(I'd prefer the latter).
I've been trying to fine tune the battery, currently I'm using DeFroST 4.9 with SVS 998Mhz @ 1275mv kernel with 17_2 radio. Re-calibrated the battery yesterday and compiled a custom wi-fi module containing fixes for sleep disconnection today morning.
I left it at night around 3 AM with 99% battery, turned off the Wi-Fi/EDGE but kept mobile on. In the morning(Around 9:30AM) I was at around 91%. Gave it a quick charge to 100 till around 11:15 AM. Disconnected it and from 11:20 to about 11:40/45 AM I had quite a heavy chat session over Nimbuzz with my friend. My battery went from 100 to 94% in that time. After that I pretty much left it, picked it up to check a mail once or twice and sent a few messages over Nimbuzz. It is 1:40AM now and I'm down to 89%. All of this was over Wi-Fi, GPS off, Bluetooth off, no tethering no nothing. I got no Facebook/Twitter auto-sync. Only FancyWidget(every 3 hours) and Gmail Push. Brightness is at 2%(Although even then it is a bit bright, maybe it is just me).
I am using Extended control widget to see the power percentage.

th3 said:
OK. There's not much I can say except what other guys who know better than me said here http://forum.xda-developers.com/showthread.php?t=743172
It's all usage/config/settings dependent. There's no secret sauce. Some setups and usages last shorter than others, yet further, some drastically shorter.
Firstly, I don't change something working well nor move from a setup until I've worked with it the best I could. The ROM I use daily is HTC 2.2 with root. The radio is some old one that worked perfect for me: 32.43.00.32U_5.09.00.20. I can give you some details so you can characterize the battery performance on mine better.
- H.264 sub 2.5Mbps 800*480 video playback at 18% brightness lasts 5.5-6.5h with about 15% remaining. This has been repeated more than 50 times since March.
- My average runtime used to be 13-18h since March but I knew something was wrong and drawing more juice than necessary. I kept looking (mainly at the logs). It took me months to figure out it was a few things including my build.prop WiFi/cell settings, A2SD+, my GMail install, battery widgets, eBuddy, Titanium Backup, Chrome2Phone, Pure Calendar/Grid widgets and my 3G baseband reception. Some app versions were buggy and constantly polling and returning random errors in the background. I had to eliminate them one by one.
I rectified such problems entirely and removed all the unnecessary apps installed which I rarely used. I had to revert back to FroYos A2SD with the install location mod. That took me to todays battery runtime which I'm very happy with. Chrome2Phone for instance could stay installed and be disconnected when not in use to avoid the large background drain it caused.
- I run personalized colour calibration with lowered overall luminance but more red and green with less blue sub-pixel luminance. Very near D6500 whites. I also keep most apps and my homescreens dark when and where possible. I disable button LEDs through a widget when not required (much).
- 24-39h is the norm for me in typical usage. Among much else that always includes a few short calls, some YouTube, some StreetView, some TapeMachine (audio record), some Scan2PDF, some Aldiko, some Chrome2Phone and Fox2Phone, some Tapatalk browsing, some XDA app browsing, some Quick App Clean Cache, some SpringPad, some Adobe PDF, max 15mins of MP3 playback, heavy net and NewsRoom browsing, 150-250 emails and messages and constant sync with what I listed priorly. Always 2G though, and whenever I reach areas I know have bad or no reception (causing high drain) that I'll be staying at for more than 10mins, I disable cell (frequently). I've nurtured the habit of putting the phone in standby after every use too.
- 6-9.5h display on aggregate is the norm for me. I use lowest brightness possible or 18% typically. 50% in very bright, direct summer sunlight. Just now the battery ran out after 26 hours with 9.2h display on, 13.5h cell on and 22h WiFi on.
- I have apps I consider junk removed: Facebook, Footprints, etc. The lot. So no sync or auto running for them or their widgets in the background. I also removed the base GMail because logs showed me it carried on running sync all the time even when not set to. I forced the latest GMail APK in and it has no such problems. I removed all battery widgets installed except one since they drain heavily.
- Heavy usage like GPS, lengthy calls, video recording and playback cuts the runtime down drastically which should be conspicuous. I can drain the battery fully in 5h with everything max and running.
-----------------------------------
- HTC Desire via XDA App -
Click to expand...
Click to collapse
Whoa ! Amazing post there. This should keep me occupied for quite some time to figure out what the heck is going on with my battery. The battery life what you are getting is really good and that is what everybody should get provided they figure out what the heck is sucking their battery that bad. Lotsa things and apps you have said drains the battery is on my phone and I haven't even started looking at logs in detail. Itz been only couple of weeks since I have this phone so I'll defn start looking into this issue.
Few questions
1. What issues did you have with your build.prop?
2. What battery widget are your currently using ?
3. You have mentioned A2SD+ also is a battery drain, was it a particular ROM's implementation of A2SD+ or older version of A2SD+ or A2SD+ in general causes battery drain ? Would be great if you could link us to the location mod

OK, It is 7:05 PM now and I am down to 70%. Nimbuzz was on all the time along with Wi-Fi(Although I don't know what happened but it switched to EDGE as if it lost Wi-Fi connectivity, Wi-Fi wasn't disabled, just disconnected). And I pretty much haven't touched it since 1:40 PM. Not as good as I hoped, but still kind of decent.
And my Wi-Fi strength isn't that great either, it is either 1 or 2 bar out of 4.

Well, I haven't done any such kernel modifications intentionally. Never had any need to either. 14.5h since last charge now, cell on 5h, WiFi on 12.5h, display on 2h and 76% remaining (actually, those stats were collected and written an hour back). The Desire display has been verified to consume at least 70% of the total device power when the screen is on. So you can't get more hours with display on if it didn't run as such.
It's HTCs ROM so of course it is using Sense. I can't do without most HTC added goods in Sense. Let alone the Mail, Bookmarks, Calendar, Stocks, Copy/Paste, Lookup, Clock, Gallery and Camera apps and widgets. The widgets I depend on work well only on the HTC ROMs I've tried. The missed Sense goodness combined with the bugs and problems I had on AOSP ROMs were extremely problematic so I moved back. Even my video recording and native playback is much better on this ROM.
To be frank, you've hardly had the phone so you'll learn much more yet. And it comes through search->reading->experimenting first. 1-2 weeks is too little for even figuring out most of the basics, unless you're moving from a similar phone and OS. For one, you'll need to actually read the linked thread to see what many observed and experienced. It took me and many others 6 months to learn things and get to this stage. Every other day I was testing and monitoring. But be aware that you can't, for instance, have the exact same setup and usage as me to have the same resultant battery life.
Had you read the linked thread you'd also be aware by now that bugs were filed for inaccurate % readings by Androids Battery Usage section. However, its time tracking was reliable in my testing.
- On your typical full discharge, how much time and % is listed under Display on?
- And for cell?
- Which A2SD are you using?
- Static wallpaper/color?
- Animation settings?
- Location on?
- Network location errors in logcat?
- Cell network chosen auto or manual?
- Did you mention all the widgets on all homescreens?
- OSMonitor/CurrentWidget values in idle screen on and idle screen off?
I use EC and SwitchPro widgets too but their battery widgets (like you mentioned) are known as ones with high consistent drain. The EC dev also corroborated this in its thread under the Themes section.
The 'idle' drops you get don't make sense to me unless there's fundamental hardware/software activity you haven't properly monitored and logged. Even kernel and I/O usage in the background. You'd be surprised at the difference one buggy underlying feature can make.
-----------------------------------
- HTC Desire via XDA App -

If you're actually asking those questions, here goes. Note, I am at 66% and the time is 8:56PM. And after this I'm gonna nandroid this ROM and try SuperVillainHD just for the kicks. Also, can it be that since the phone is relatively new, the battery is not up to its full potential?
Q1, 2) Battery usage is :
Display: 35% (35m 37s)
Wi-Fi: 20% (9h 44m 22s)
Cell standby : 15% (9h 44m 22s)
Phone idle: 14% (9h 9m 42s)
Android system: 6% (CPU Total: 9m 35s, CPU Foreground: 27s, Data sent: 7.82KB, Date received: 11.38KB)
Nimbuzz: 4% (CPU Total: 6m 46s, CPU Foreground: 2m 54s, Data sent: 298KB, Data received: 851KB)
Android OS: 3% (4m 1s)
Voice calls: 2% (45s)
Q3) I'm using DeFroST ROM with A2SD+
Q4) Yes, I'm using a static wallpaper
Q5) Animations is set to : All animations
Q6) GPS is disabled, if that is what you mean.
Q7) How can I check this and what would it show?
Q8) Didn't touch this, so I'm presuming Auto.
Q9) I'm not sure, so here goes. I got a Twitter widget, Facebook widget, both are set for manual syncing. Got FancyWidget syncing every 3 hours and several harmless icons. I got 3 bars of Extended Control widget and a google search widget
Q10) I don't have those, are they available in market? Do they consume battery?

venkig said:
1. What issues did you have with your build.prop?
Click to expand...
Click to collapse
I'll have to open the file for that to check exactly the changes I made. I didn't really follow anyone, just went off my own understanding and intuition. If I try to access the dir or open the file whilst the phone is not in Recovery, it'll force a reboot so I'll give more details later on this when I'm near a PC.
2. What battery widget are your currently using ?
Click to expand...
Click to collapse
Just this: http://bit.ly/cNQUVd
3. You have mentioned A2SD+ also is a battery drain, was it a particular ROM's implementation of A2SD+ or older version of A2SD+ or A2SD+ in general causes battery drain ?
Click to expand...
Click to collapse
FroYos A2SD was nice but I needed much more space and was trying A2SD+ with various ROMs as well as manual use on HTC ROMs. Endless problems such as very remarked, consistent sluggishness in basic functioning, total boot and app load slowness, including high, persistent background CPU and IO loads and very poor SD card transfers over USB and WiFi made me sack it. I lost a class 4 16GB Kingston SD card with errors inside 2 months. I transfer 2-4GB in/out daily and many transfers started failing. Widgets bugged out frequently when you needed them most and had to be all re-setup. Video record and playback became dis-able. The phone became useless except as a toy. That's not what I bought it for but as a helpful companion. I eliminated everything in question. It was simply the SD card [over]use compared to internal memory. This: http://forum.xda-developers.com/showthread.php?p=7025105
Would be great if you could link us to the location mod
Click to expand...
Click to collapse
I simply typed the command through adb but:
http://www.androidpit.com/en/androi...deandroid.modil/Mod-Install-Location-For-Root
http://forum.xda-developers.com/showthread.php?t=778738
Even though I used this, I still have select applications not on the SD card upon learning that they worked far more consistently and properly with lower power and CPU usage when using internal memory. Trial, observant monitoring, and error.
-----------------------------------
- HTC Desire via XDA App -

[Q] Poor battery life.. being reading a lot of threads but..

I have been reading of a lot of threads about how to save battery life..
here's what I done:
1. gps off
2. auto kill w/ advanced task killer
3. screen brightness at low
4. sleep screen after 15 seconds
I have got my desire for a few months and battery life has been bugging me. I understand that modern big touchscreen will drain the battery as compared to normal phones. Using a custom rooted rom atm.
I unplugged the phone at 12:00 with data on (push, auto-sync, etc), when i woke up at 7:00, I'm getting 73% of battery life. Charged it to full again and unplugged it at 8:30. My phone the phone shutdown by itself at 21:30. It's a little bit more than 13 hours of battery.
Is it me or everyone else is getting the same number? I just installed setcpu and see how it goes.. please tell me if there's any other way to preserve more battery!

I think it partly depends on which ROM you are using. I am currently using a new ROM (which I LOVE) but I've noticed that my battery life has decreased quite a bit. It can be kind of a trade off. I love the ROM so much that I'm not going to change it but it works ok for me because most of the time, I am somewhere where I can charge my phone if necessary.
Just found this thread which might help. http://forum.xda-developers.com/showthread.php?t=755903&highlight=battery+usage I'm going to try it and see if it helps.

- ROM?
- Display on time?
- Cell/WiFi on time?
- Chrome2Phone (or similar) running?
- Any battery widgets running?
- Any social networking apps/widgets running?
-----------------------------------
- HTC Desire via XDA App -

..overall the battery lifetime is not as good as we would like it - but its a general smart phone problem - anyway I charge my device once per day...who cares?

th3 said:
- ROM?
- Display on time?
- Cell/WiFi on time?
- Chrome2Phone (or similar) running?
- Any battery widgets running?
- Any social networking apps/widgets running?
-----------------------------------
- HTC Desire via XDA App -
Click to expand...
Click to collapse
- ROM? Rooted Official Taiwan froyo rom httx://bit.ly/bSUVWV
- Display on time? sorry, how can i find this?
- Cell/WiFi on time? no wifi, cell/data apn on all the time
- Chrome2Phone (or similar) running? Android Notifier
- Any battery widgets running? None
- Any social networking apps/widgets running? 1. Friend stream (facebook and twitter) 2. Extended controls 3. HTC Notepad
Do you think it might be android notifier? it's set to send every event..
What's the average battery life with cellular data on?

My battery life is also quite shocking, also lasts for approximatly 13 hours under normal use, but if it is in standby then I'd say it lasts for 20 hours.
under normal use:
no 3/2g mode, just wifi
leedroid 2.2a
occasional games
occasional call (like 1 in 10 hours)
1~2 messages
btw you can find display on time in 設定->關於手機->電池->喚醒時間

h3llb3nd4 said:
My battery life is also quite shocking, also lasts for approximatly 13 hours under normal use, but if it is in standby then I'd say it lasts for 20 hours.
under normal use:
no 3/2g mode, just wifi
leedroid 2.2a
occasional games
occasional call (like 1 in 10 hours)
1~2 messages
btw you can find display on time in 設定->關於手機->電池->喚醒時間
Click to expand...
Click to collapse
thanks for the tip 現在安心了..
standby time around 3 hours

10w40 said:
thanks for the tip 現在安心了..
standby time around 3 hours
Click to expand...
Click to collapse
np
and your current battery status?
(sorry I type faster in Eng XD been away from TW for like 9 years now...wanna go back TT)

Do a full typical usage discharge from full to near off and see what the battery stats in that section read for Display, Cell, Phone idle and anything other (tap each one for hours and percentage).
-----------------------------------
- HTC Desire via XDA App -

10w40 said:
Do you think it might be android notifier? it's set to send every event.
Click to expand...
Click to collapse
I'm not familiar with the app but I am with FB and such and their widgets. Any app/widget polling at high frequencies like per second or per minute produces a high additional average drain which cuts runtimes, especially standby efficiency. That includes monitoring apps.
Do you have the battery widget chosen in Extended Controls, or the auto-brightness?
What's the average battery life with cellular data on?
Click to expand...
Click to collapse
I can't say because supposedly, mine is well above average. It depends critically on usage and setup, too. 24-42hours with 5-9h display on and WiFi/2G always on is quite the norm on mine. Put to sleep (standby), it doesn't drop 1% until 6-9 hours. There's many many threads every week about this now. And I have many updating widgets and auto syncs running, just nothing to do with social networking since I've completely deleted from my phone.
-----------------------------------
- HTC Desire via XDA App -

19 hours 40 minutes
Standby 35%
Phone idle 32%
Android system 17%
Voice call 5%
Display 5%
Maps 4%
Dialer 2%
I am on 3g/hsdpa

Sorta new to the forum.
Just got me a HTC Desire. Rooted running CM6.0.2
If i baby it, i get maybe 6am-2pm. Heavy use, its done before noon. Ouch
Standby is ok, i left it off the charger last night and I lost 25% over 10.5hrs.
Ive got 1 twitter app on a 5min refresh. Weather is on 1hr. Screeen is down around 15% brightness. setcpu is on 245min, 998max, scaling on demand an a screen off profile of 245.
I have no idea what more I can do to get more then half a day out of it without just not using it lol.
Im pretty new to Android and all this rooting/rom stuff so maybe Ive got something screwy. I also tried a second battery from a friend, no change.

set that friends widget to longer than 5 mins and the weather widget to every 3 or 6 hours. i bet you that will get you alot more time.

Made the switch but cant see it making that much of a change.
Any other suggestions?