Develop Bugs

Desire Battery Life

I've heard some people say they get 3 days out of their desires and others saying they get just over a day.
This thread it would be great to collect a list of people with desires and their average battery life as well as a list of apps they have installed and widgets on display and maybe the rom they are using.
Just trying to work out
I'm going to collect data and put something up tomorrow - but I noticed last night that my battery went down really quickly when my Alarm went off (using Gentle Alarm) I also confirmed this using JuicePlotter which showed the battery sharply decrease just at the same time in which my alarm was set to go off.
I also noticed that having wifi turned on didnt seem to effect battery life that much...

Yeah my battery lasts really well leaving WI-FI on too. Not sure why others have an issue with it.
My battery will last a day tops turning on from 7.30 and off again around 12am ish
During day I will use Seemic (on manual update) and use FB on net every now and then.
May occasionally go to the Market for Updates.
I only use mobile Network when I need to so I turn off and on when required.
I will play Word Up and Solitaire for 30 -40 mins a day roughly.
Battery % will vary between 65 - 45 by 6.30 pm
Today it is down to 75% at 2.10pm - although I've not played any games today so far.

I bought an X10 and returned it because the battery wouldn't last even a day despite having all kinds of task-killing crap installed.
Then I bought a Desire and had the same problem - 6, maybe 7 hours of battery.
I found a post on some obscure blog that helped me track down the culprit: there are apps that don't let the device go to sleep completely. I had two of them. And Android (at least the HTCs) have a built-in function to see exactly what those processes are:
From the dialer: *#*#INFO#*#*, choose Battery History from the menu and then Partial Wake Usage. Nothing should have more than a tiny fraction of a bar. But on mine, Grooveshark was using 99%. I uninstalled it, tried again a few hours later and saw that Mikandi was using 99%. I uninstalled that, and now I'm getting more than 24 hours of heavy use.
Some apps just don't behave.

Why would Dialer App have such a high network usage?
It shows up as using a lot of network!

choccy31 said:
Why would Dialer App have such a high network usage?
It shows up as using a lot of network!
Click to expand...
Click to collapse
choccy31 said:
Why would Dialer App have such a high network usage?
It shows up as using a lot of network!
Click to expand...
Click to collapse
Wouldn't the dialer use the network to call people when you dial?
Thanks for the "cheat code" on the hidden menu. Very interesting.
I can sometimes squeeze 2 days out of my battery. I'll only get a day and a half on this charge though because of lots of txting and facebook use.
I found this menu option in Settings > "accounts & sync" > Background Data. I turned this off and seem to get a little more battery.
Changing the brightness down a bit helps, and i'll set the screen timeout to lower as its at 1 minute now. Plus If I use friend stream instead of the facebook widget then it updates when I want to and doesnt keep active.
Least amount of battery time i've had is a day. I never turn my phone off.

I never get a full day out of mine, maybe 8-10 hours max... I have no idea how some people claim 3 days, I'm not exactly a power user!
Stock ROM (not a provider one, just generic) on T-Mobile UK network
Wi-Fi and GPS off
Widgets: Standard Flip Clock, SMS, FriendStream, Stocks (2hr update), Agenda, News (2hr Update)
Market Programmes: K9 Mail (1Hr e-mail updating), ES File Explorer, Shazam, Voice Search, Pkt Ebay, Tricorder, UK TV Guide, GBCoid
In Standby (screen off), not using web, not calling, not texting, not using apps, I lose around 10% per hour, faster if anything at all is on.
Oddly, despite the very poor (for me anyway) standby life, in call life seems really good, I made a call last night for an hour, where phone was in the orange phase when I started and still hadn't gone red at the end...
Pauly

I wanted to try turning background data off but sadly the market does not work when you have this turned off (a warning pops up when you try)

dieselboy said:
Wouldn't the dialer use the network to call people when you dial?
Thanks for the "cheat code" on the hidden menu. Very interesting.
I can sometimes squeeze 2 days out of my battery. I'll only get a day and a half on this charge though because of lots of txting and facebook use.
I found this menu option in Settings > "accounts & sync" > Background Data. I turned this off and seem to get a little more battery.
Changing the brightness down a bit helps, and i'll set the screen timeout to lower as its at 1 minute now. Plus If I use friend stream instead of the facebook widget then it updates when I want to and doesnt keep active.
Least amount of battery time i've had is a day. I never turn my phone off.
Click to expand...
Click to collapse
True re the dialer. Was thinking network as on net use.

anyone got background data or mobile data turned off?
if so whats your battery life like?
also anyone tried with 3G on and compared to GSM ONLY?

awestenb said:
I bought an X10 and returned it because the battery wouldn't last even a day despite having all kinds of task-killing crap installed.
Then I bought a Desire and had the same problem - 6, maybe 7 hours of battery.
I found a post on some obscure blog that helped me track down the culprit: there are apps that don't let the device go to sleep completely. I had two of them. And Android (at least the HTCs) have a built-in function to see exactly what those processes are:
From the dialer: *#*#INFO#*#*, choose Battery History from the menu and then Partial Wake Usage. Nothing should have more than a tiny fraction of a bar. But on mine, Grooveshark was using 99%. I uninstalled it, tried again a few hours later and saw that Mikandi was using 99%. I uninstalled that, and now I'm getting more than 24 hours of heavy use.
Some apps just don't behave.
Click to expand...
Click to collapse
Well the only app that have a bigger bar is Android System... Is this normal?

Settings ; About phone ; Battery ; Battery use and it will tell you when it was last unplugged and what has been using it.
4h 27m
Cell standby - 45%
Phone idle - 45%
Wifi -7%
Android system - 5%
Display - 2%
Obviously you can see from that I've hardly used it. A few texts, checking email periodically. Display brightness is on full, weather update is set to manual. Only have a few apps installed. Main one being data counter widget.
2000kb wifi
780kb cell.
Oh, and SystemPanel, tells me I have 93%.

Switch off 3g when you don't need it,this can nearly double your standby/idle time ,use a 2g-3g toggle if its a pain.
Juice defender with its plotter can give you very useful info on when your phone is using its battery the most.
On idle with 2g 1% per hour is normal, with 3g 2-4 %.
As soon as that screen goes on start thinking 15-20% per hour!
Most smart phones are the same,my x1 ,touch pro all got caned when I first got them,but a bit of experience and a few tweaks later they were doing 3-4 days.
Also flatten it and fully charge it when switched off helps too.

My battery life is pitiful too, im a pretty light user now ive had time to play with the phone for a while but battery will always need to be put on charge by around 10pm when only unplugged around 7am the same day.
I bought up the partial wake usage list and UID followed by a number is using twice the power of Android System.
Does anyone know what the UID is?

My battery life was rubbish until i updated the radio version to 32.37.00.32U_4.06.00.16_2. I am also using MCR3.1
Before my battery life would be fully discharged within 7 hours. Now i have 1day+ Not too sure as i now have a brodit car mount that charges my phone during my commute.

PeteT said:
My battery life was rubbish until i updated the radio version to 32.37.00.32U_4.06.00.16_2. I am also using MCR3.1
Before my battery life would be fully discharged within 7 hours. Now i have 1day+ Not too sure as i now have a brodit car mount that charges my phone during my commute.
Click to expand...
Click to collapse
To update, do you need to root your device? I don't want to root mine, but I want to get the best battery life possible.

I;'m now using the beta version of Juice Defender
and i've disabled always on mobile data
will let u know how i get on

Ok I'm now onto day 2 using the desire with the following settings
Juice Defender Beta with Ultimate Juice
- wifi on all the time when in known location
- APN / WIFI off when screen is off
- APN off between 0:00 and 6:30
Always on Mobile data turned off (via networks)
Removed al unneccesary widgets (using ADW Launcher) - currently not using any widgets that sync content
Gmail set to only sync 1 days worth of content
Calendar Sync turned off
Contact Sync turned off
--- Usage -----
Approx 2 hrs worth of calls
1hr watching MP4 videos
browsing the web approx 30mins
checking marketplace - 10mins
replying to emails (approx 20)
---- ---
Currently the battery is at 46%
Was 100% on Wednesday 5pm 2nd June 2010
If it makes it through the night I'll be very happy - will report back

im getting somewhere between 38 - 48 hrs on a charge, no task manger installed with wifi and gps enabled.

Tiger33 said:
Ok I'm now onto day 2 using the desire with the following settings
Juice Defender Beta with Ultimate Juice
- wifi on all the time when in known location
- APN / WIFI off when screen is off
- APN off between 0:00 and 6:30
Always on Mobile data turned off (via networks)
Removed al unneccesary widgets (using ADW Launcher) - currently not using any widgets that sync content
Gmail set to only sync 1 days worth of content
Calendar Sync turned off
Contact Sync turned off
--- Usage -----
Approx 2 hrs worth of calls
1hr watching MP4 videos
browsing the web approx 30mins
checking marketplace - 10mins
replying to emails (approx 20)
---- ---
Currently the battery is at 46%
Was 100% on Wednesday 5pm 2nd June 2010
If it makes it through the night I'll be very happy - will report back
Click to expand...
Click to collapse
Stating the obvious, but if you don't use your phone, your battery will last a long time!
Personally I need to use my phone (otherwise why would I have bought it) so have push email running with full Exchange sync 8 till 8, FB & Twitter syncing once an hour, spend a couple of hours a day making calls, connect to WiFi using my iPass account whenever a hotspot is available and spend a lot of time dealing with emails etc.
I put my "less than a day" battery life down to the fact that my screen is on and doing stuff for much of that time.
Of course if I just leave the phone on the desk at the side of me and don't touch it all day, even with push mail and all that sync, if the screen is not turned on much, I get 2 days.
It's the screen that eats the battery. The more it is on, the shorter the time between charges.

Wow I don't understand how you people get such amazing battery life!
I am no noob anymore regarding Android and Smartphone's in general, so I understand most 'hints & tricks' in this thread. But simply for me this does not work.
Some important stuff:
- I ALWAYS have 2G on, never 3G.
- I use wifi at home and in most places I go
- I have almost everything set to 'manual' updating
Ok.
For example my last situation:
I unplugged it at 23.30 yesterday. I used it for a little bit, over wifi. Checking twitter, surfing the web, watching some video's in HTC Flash Player. I went to bed around 02.00, watched some Law & Order that's why it was so late. So before turning off the lights, I turned wifi off. The battery was around 80-85%, from what I remember.
I wake up at 12.00. The battery was still above 50%, that's for sure. I do some facebook, twitter, news, etc. All over wifi.
And now, just before 17.00, my battery was dead (while I almost typed this entire story on my Desire -.- I was pissed). So that means, about 17 hours? Which about 10 hours I slept and the phone was doing nothing, over 2G!
So yeah... and when I read all your story's about 2 days (48 hours) I am really like: WTF
Some more details:
-No live-wallpaper. Just the black 'carbon' one.
-I used to use LauncherPro beta, but battery life was just as bad. Now I am back on HTC Sense. I have some widgets, like the Calander widget, a small music widget, bookmarks widget, etc.
-I tried to find out what uses the most battery while sleeping with that code and it showed Android System. So nothing weird there.
-Again, everything set to MANUAL updating
-ONLY 2G.
-Brightness set to auto.
So really, I think it's my wifi that sucks the battery life out of my Desire. I remember when I went on a trip and was just 'listning' to music, my battery only dropped like 10 to 15% in 3 hours.
-----------
Btw, I remember that this 'some people have great battery life some people don't' story was the same with the HTC HD2. The only different thing there was that I was one of the people with the 'good' battery life. Now I am on the 'losers' team
Any help would be great!

what would be the best kernal for me to have ?

my battery drains like a bugatti veyron doing 252mph constantly
so what would you advise . is the kernal i have now the best or should i change .. i dont want to reall lose much performance on what i have now but would like the battery to maybe improve if possible ...
from full charge taking plug out searching market for 2 mins the battery drains 5-8% in matter of mins
and i have only had the phone a week

With that kind of drains the problems the kernel won't change that much. There is probably a app that causes the battery drain so looking in to that will have more effect. Also the brightness/screen on is the biggest drain and kernel won't do much about that.
You said that you have the phone a week, the battery needs some time to reach it's full potential and you probably use the phone a lot because it's new. So use the phone normally for another week, after that week let the phone drain until it shuts itself off, leaf it off and charge it till it's full. (there is a different calibration method but this always worked for me)

What do you have now? Stock or rooted?
Sent from my HTC Desire using XDA App

First of all, I would assume that you don't use the phone non-stop (it would be justified to lose power in a few hours if you're on it non-stop).
I recently had issues with power consumption as well. What I did was:
1) check the built in battery monitor: menu-settings-about phone-battery-battery use. The bad thing about this monitor is that it does not differentiate well the apps consuming power, but you can still see if there's something wrong, as the most consumption should come normally from the screen and voice calls. For me, the most consumption was made by com.htc.bg, which, if I let the monitor on for a few seconds, would transform in the calendar app. Weird stuff. I unchecked the calednar auto sync from menu-settings-accounts and sync. It may have slowed the power loss down, but not significantly. I noticed a significant loss of battery by WiFi. I realized, I needed more information so:
2) I installed an app called 'Power Tutor'. What it does is, it calculates which apps consumes power, and it shows you in percentages. After install, you need to start the 'power profiler'. It will appear in your notification bar. If you let it run, after a few hours, you can see in "view application power usage" who is using power. That's how I discovered that my winamp app was really off the charts using power like crazy. So I went in the winamp settings, and I unchecked some options that could have determined this power consumption, like wireless sync, automatic mount as USB drive, etc. There was actually an option that was overriding the wifi power management, stating that the wifi does not stop after 180 seconds of standby. Basically, if you have wifi on, and you stop using the phone for 3 minutes, the phone automatically turns off the wifi. This was not happening any more, due to winamp. So I unchecked all those options, and voila. It worked, I have now normal battery life.
Good luck!

be aware of a couple of things
1. battery drain for the 1st few weeks are high because of a couple of factors, the battery "learns" and gets conditioned over a period of time (doesnt use the old 16hr charge process). its a new device for you so its a novelty, you probably mess about with it with the screen on more than you think.
2. there is a configuration within HTC's builds and in the memory chip of the battery to stop over charging. the device will charge to 100 and then slowly deplete to 90% while still saying full on the phone. as soon as you disconnect it recalibrates to the correct value which is anywhere between 90% and 100% depending at which part of the cycle you catch it

Some other tips to increase battery life, from a friend of mine in the Romanian forum:
1) use the app watchdog, it will warn you when an app is using too much of the processor and will ask you if you want to close it.
2) juice defender with the paid add-on 'ultimate juice' - with the correct settings... it's amazing.
3) Dial *#*#4636#*#* - phone information-network type: select gsm auto prl. The phone will stay on 3G when it has good signal, and switch to 2G when it doesnt, saving battery
4) Change the wallpaper to a static one, not a live one.
5) Go to menu-settings-accounts and sync and increase sync intervals for weather, news, or even set them to sync manually when you choose.

i will try and answer everything at once ..
ok my screen is on 13% brightness
i hardly ever use my phone , the only real use was to root , s-off, put ROM ETC ON
I reply to about 50 texts ish per day and search the market for literally 1-2 mins to see what new apps are in
i dont play games or anything
the thing the battery uses most is the screen and as i say i have it on monochrome theme with 13% brightness, there is nothing synced , i check automatically for email etc .. actually beautiful widgets is set to auto update every 4 hours
i never use wifi as i have a 3gb download/data usage, i dont use gps ...well i do but i have had no need to .. thats about all i can tell ya
rastaman the pt2 is a bit weird it should stay at 100 if just taken out of charge

I calibrated the battery and that made no difference.
Sent from my HTC Desire using XDA App

[Q] Cell standby/ mobile standby battery use?

Well, I searched the forums and haven't found anything specifically for the Defy.
Coming from an HTC Wildfire, which under similar usage had a battery drain split of 30% Cell standby, 30% wifi, 30% system, I noticed that with the exact same usage, the Defy has a cell standby use of over 50% every single day (right now its at 54%). Funny thing is, it ALWAYS says on the battery manager that there is no reception for exactly 50% of the time. This is bull, because I live in central London, and I rarely get less than maximum signal displayed.
Also, I'm on WiFi almost all the time, (WiFi at home and at uni, so the only time it uses 3g/HSPA is on the way there and back, which is less than half an hour).
Has anyone else had this? Any idea what may cause it? I feel like I should be getting better battery life than what I'm getting now, it lasts under a day.

Setting your mobile to 2G only should save you a little power, also be careful with task killers as they can kill some system processes that reduce battery usage, restart you cell to get them back.
I can get 3-4days of battery life with lite use.

Tinderbox (UK) said:
Setting your mobile to 2G only should save you a little power, also be careful with task killers as they can kill some system processes that reduce battery usage, restart you cell to get them back.
I can get 3-4days of battery life with lite use.
Click to expand...
Click to collapse
Thanks for the reply.
I'm not using any task killers, so that shouldn't be a problem.
Any tips on how to switch it to 2G? I can't figure out anything in the network settings.
I'm just thinking that there may be something wrong with my radio receiver/transmitter to be using so much power in comparison to wifi and phone idle (well, compared to my last phone).

You can switch to 2G in wireless & network settings, mobile networks, select network.
But I am already using 2G and I have the same issue, maybe it is a little better than 3G, but still the "cell standby" is using most of the battery.
I saw the battery usage on Galaxy and there is only a very small usage for "cell standby" only about 10%.

i dont know what's going on with your cell,but WIFI is actually the biggest battery taker
,and the strength of signal power really do something to your WIFI chipset battery usage
what about a better WIFI signal....err i tried to change my cell into 2G or even outline
it doesn't work too much as i want
so maybe think about the WIFI problem?

Well, right now the main drainers are as follows:
Mobile standby: 44%
Go Launcher EX: 25%
Wi-Fi: 15%
Display: 15%
Phone idle: 2%
I was in my place all day today, with the phone permanently connected to Wi-Fi, so 3G was not in use. I get very strong cell reception in my place so I either have a spectacularly efficient WiFi module, or a power hungry cell radio. Or the measurements the phone is taking are wrong.
On another note, Go Launcher seems to be taking up a large percentage since its last update (yesterday or the day before), so I'm uninstalling that.

if WIFI should not be the reason and you've uninstalled the update task,i think it should be OK...but what would you do if that doesn't work?
the battery usage of standby was still more than 40 percent,yes?
why dont you download another battery monitor software....?
i'd have a longtime software error in my HTC G3.....it alwaws show me 45percent remaining battery ....

in setting/wireless & network/mobile networks/select network --- it's good to set 2G or 3G do not let automatic because it switches from 3G to 2G if the signal drops. Set 3g and see how it is.
(sorry for english)
mine on automatic in 6 hours battery dropped to 50% in standby, and now it is set to 3g all the time
mine:
Mobile standby: 40%
Display: 22%
Phone idle: 21%
System: 4%
Games, Adw Launcher EX and os: each 3-2%
when in games mine sometimes freezes and i must get out and restart the game???? i dont no why and i dont no if it is ok but ....

Thanks for the input everybody. So all of today I used the phone pretty sparingly at home, and it's been constantly connected to WiFi. Distribution is:
Mobile Standby: 56%
Wi-Fi: 19%
Display: 12%
Phone idle: 9%
Android System 2%
Under Mobile Standby, it still says "Time without a signal: 50%" even though it's definitely had perfect reception all day. I don't know what's causing it to report incorrect numbers :/
Anyway, I switched from auto to 3g auto (I tried 2G, it didn't seem to work properly, Google wouldn't even load).
I guess I'll just ignore it :/
Edit: When not on wifi, it seems to switch between 3g and HSPA quite often. Could this mean something?

iamnik said:
Edit: When not on wifi, it seems to switch between 3g and HSPA quite often. Could this mean something?
Click to expand...
Click to collapse
just like what <stapuv>says when your cell drops any one of the 3G or HSPA singnal another singnal will be switched...it'll use more power for changing network frequently.....but i dont no if this could be the reason for your situation...hmmmm

From my reading the 50% without signal is just a software bug, and can be fixed by toggling on aeroplane mode turning of teh screen for 20 seconds or so and then turning of aeroplane mod when you notice it's happening. the 50% will soon decrease. I too believe that cell standby is using way to much on my phone (always 45%+) even though im browesing the web facebook or playing games for larger peroids of time and those apps don't even show up on the battery usage display and if they do theya re only 2 percent or less.

I have a question for you guys :
I get
46% mobile standby
43% phone idle
10% voice calls
3% display
is this 43% phone idle all right? Doea it mean that 43% of the battery have beed drained by phone in idle state (so maybe not sleeping?) or it means that from all the time phone was idle (asleep) for 43%?

I guess mobile standby use is about the same on everyones phones. That's what I wanted to find out!

iamnik said:
Well, right now the main drainers are as follows:
Mobile standby: 44%
Go Launcher EX: 25%
Wi-Fi: 15%
Display: 15%
Phone idle: 2%
On another note, Go Launcher seems to be taking up a large percentage since its last update (yesterday or the day before), so I'm uninstalling that.
Click to expand...
Click to collapse
After Go Launcher EX latest update, the battery seems to drain a lot faster during idle/standby. Removed that and standby battery usage is better.

Just thought I'd add my finding on this.
My Defy regularly showed Mobile Standard over 50% - but also time without signal was always double the time that the phone had been switched on. For instance if the phone was switched on since a reboot for 1 hour then mobile standby would show the total time as 2 hours but time without a signal as 1 hour.
I had always been running on a battery saver profile (in froyo I was running the custom battery profile) & after every reboot the mobile standby bug would show.
Yesterday I changed my battery profile to the Performance mode & after several reboots the bug hasn't shown up & now the mobile standby shows the total time correctly & zero minutes without signal. The %age use has dropped to be more in line with wifi at around 32%.
I haven't noticed any difference in battery life so as mentioned in a previous post it does look like some sort of bug.

A percentage is a proportion.
Just because it's higher on the Defy, that doesn't mean the mobile standby is using more power than it does on other handsets, it could just mean everything else is using less.
There's no point comparing your Defy's battery usage to any other handset apart from another Defy.

sp8y said:
Just thought I'd add my finding on this.
My Defy regularly showed Mobile Standard over 50% - but also time without signal was always double the time that the phone had been switched on. For instance if the phone was switched on since a reboot for 1 hour then mobile standby would show the total time as 2 hours but time without a signal as 1 hour.
I had always been running on a battery saver profile (in froyo I was running the custom battery profile) & after every reboot the mobile standby bug would show.
Yesterday I changed my battery profile to the Performance mode & after several reboots the bug hasn't shown up & now the mobile standby shows the total time correctly & zero minutes without signal. The %age use has dropped to be more in line with wifi at around 32%.
I haven't noticed any difference in battery life so as mentioned in a previous post it does look like some sort of bug.
Click to expand...
Click to collapse
OK so after a few days of having no issue I rebooted the phone & the "bug" came back today so I guess it wasn't to do with the battery mode as I then put it back into custom battery mode, rebooted the bug went away.
Haven't noticed any difference over the last few days so I'm not going to worry about it.

I have found that DEFY is getting the readings wrong!
Here is how I get this:
1) fully charged the battery
2) started angry birds.
3) ~2 hour later, battery dropped to 60% and usages was as follows:
mobile standby 49%
phone idle 40%
display 4%
angry birds 7%
WTF ?!?! it should be : angry birds ~ 80%
This mettery is tottaly useless!

Personally I couldn't care less what the battery usage breakdown says. In my case 1% battery can standby 1~2 hours or use 3~5 minutes. That's pretty good for me as a charge can last 2 days.

Hi.
Could someone with this "bug" or "battery problems" do a test for me ?
A few hours after you've last charged your phone (or connected to USB) and being sure you haven't rebooted your phone recently (24 hours or so), do the following:
(My phone uses spanish language so the names might be different ...)
Dial *#*#4636#*#*, and choose battery history.
There, choose "CPU Use" and "since last charged".
What are the 4 or 5 main processes appearing in that list, and what's the CPU time they've used (you'll find that by "clicking" on the process' name) ?

[Battery] Excellent Solution for high battery drain

Hi to all
After many fights with my loved Desire i'd found an excellent solution for the high battery drain.
I have the OxygeN ROM 2.3.2 (very very very nice and stable ROM) but the average life of a charge was 1 day.
Searching on the market i'd found the app "Green Power" (free version). This app allows to manage the WiFi and/or 3G connections when the smartphone is in stand-by (SLCD turned off). Setting the parameters it is possible to swith-off (i.e. every 30 minutes) the WiFi and/or the 3G. This make a big decrease of energy consuption. So my average life of the battery between two charges is 2-2.5 days .
Very very very excellet solution
Hope to help anyone
BR

If you just want to do wifi its already build into the roms. You just need to go too wifi settings and hit the menu button and select advanced settings then play with "Wifi Sleep Policy" I have mine set to "Never when plugged in"

I read before that the WiFi radio actually uses less power than the mobile data connection, so leaving WiFi on and Data Off would drain less battery. Although obviously both off will increase it, which is how JuiceDefender works as well. But i find if you can live with all data off for periods of time you probably don;t need a smartphone in the first place, the whole point of them it to be always online for push notifications and the like.

countstex said:
I read before that the WiFi radio actually uses less power than the mobile data connection, so leaving WiFi on and Data Off would drain less battery. Although obviously both off will increase it, which is how JuiceDefender works as well. But i find if you can live with all data off for periods of time you probably don;t need a smartphone in the first place, the whole point of them it to be always online for push notifications and the like.
Click to expand...
Click to collapse
not 100% true
with my actual configuration (30 minutes OFF and 2 minutes ON) i receive all emails and notification of the day. obviously not instantly

[Q] Battery problem

I posted this in another thread but I'm not sure if it was the correct place so I moved it here.
I'm having big battery drain problems with my phone, please see screenshots for more information.
On the screenshots you can see that my battery lasted 7 hours one day and then almost 5 hours the other. I'm not sure what caused that, there was no major change in my daily routines with the phone, except maybe listened to music on my bluetooth headphones for more time than usual.
Here's my setup:
My phone is the LTE version (T999L)
I don't currently have any battery management apps (except for the battery monitor app "Wakelock Detector").
Stock 4.3
Not rooted
Screen is AUTO
Sync is ON
Wifi OFF during my work hours, I only turn it ON at home (at nights, but the battery is normally drained before that).
Bluetooth ON all the time because:
- The phone it's paired with my car
- I use BT headphones when at work
- And my Smart Watch 2 all day long
Casual gaming (I don't play much during the day, maybe for 30 minutes or less daily)
Can someone help me analyze this information to see what's wrong with my phone?

enveous said:
I posted this in another thread but I'm not sure if it was the correct place so I moved it here.
I'm having big battery drain problems with my phone, please see screenshots for more information.
On the screenshots you can see that my battery lasted 7 hours one day and then almost 5 hours the other. I'm not sure what caused that, there was no major change in my daily routines with the phone, except maybe listened to music on my bluetooth headphones for more time than usual.
Here's my setup:
My phone is the LTE version (T999L)
I don't currently have any battery management apps (except for the battery monitor app "Wakelock Detector").
Stock 4.3
Not rooted
Screen is AUTO
Sync is ON
Wifi OFF during my work hours, I only turn it ON at home (at nights, but the battery is normally drained before that).
Bluetooth ON all the time because:
- The phone it's paired with my car
- I use BT headphones when at work
- And my Smart Watch 2 all day long
Casual gaming (I don't play much during the day, maybe for 30 minutes or less daily)
Can someone help me analyze this information to see what's wrong with my phone?
Click to expand...
Click to collapse
My first guess would be to clear the data from any media related apps. Go into Settings > Apps > All Apps and look for any Media apps (including Downloads, Download Manager, Media Storage, any music apps you use, etc.). Then, click on them and click "Clear data".
Then reboot.
Let me know if that clears your battery drain.

Bass_Man25 said:
My first guess would be to clear the data from any media related apps. Go into Settings > Apps > All Apps and look for any Media apps (including Downloads, Download Manager, Media Storage, any music apps you use, etc.). Then, click on them and click "Clear data".
Then reboot.
Let me know if that clears your battery drain.
Click to expand...
Click to collapse
Thanks a lot for your reply Bass_Man25.
OK so I tried this, I cleared data of a bunch of apps (including music players). I basically sorted the app list by size and cleared the data of the most heavy ones (more than 5MB in data), rebooted and left it charging until today, I woke up at 6:30 AM unplugged phone and now at 12:32PM my battery is at 20%, I don't see much change.
I'm thinking there must be an app causing this drain because the bluetooth can't be causing it, but I can't figure out which one.
I've been thinking of backing up my phone settings and such with Kies, factory resetting it and testing it out unless someone else has another idea.

it seems you have weak to mid-range signal most of the day. also, assuming you're Wi-Fi is not actually on the entire time, to disable the wi-fi from always scanning in Android 4.3, you have to turn off\uncheck the option in Settings > Wi-Fi > press "Menu" > Advanced > "Always allow scanning". that will help a lot

Cobra281 said:
it seems you have weak to mid-range signal most of the day. also, assuming you're Wi-Fi is not actually on the entire time, to disable the wi-fi from always scanning in Android 4.3, you have to turn off\uncheck the option in Settings > Wi-Fi > press "Menu" > Advanced > "Always allow scanning". that will help a lot
Click to expand...
Click to collapse
Thanks for your reply Cobra281.
I actually don't have the WiFi ON during the day, unless my signal is pretty bad so I don't think that will change anything. And what do you mean with "it seems you have weak to mid-range signal most of the day."? Does having weak to mid-range signal drain my battery?

Have you tried Better Battery Stats? You can find a link here in XDA. Install that and let your ROM run for a while. It'll show you any kernal or partial wakelocks keeping the phone awake.
--EDIT-- Link: http://forum.xda-developers.com/showthread.php?t=1179809

enveous said:
Thanks for your reply Cobra281.
I actually don't have the WiFi ON during the day, unless my signal is pretty bad so I don't think that will change anything. And what do you mean with "it seems you have weak to mid-range signal most of the day."? Does having weak to mid-range signal drain my battery?
Click to expand...
Click to collapse
change the setting as i mentioned, because the Wi-Fi location scan is running, you have to run it via: turn off\uncheck the option in Settings > Wi-Fi > press "Menu" > Advanced > "Always allow scanning".
and yes, weak signal will cause more power use, as the phone is constantly trying to find decent service.