Develop Bugs

Battery draining issues

Hi everyone,
I bought my new Desire two days ago, and im noticing a really fast battery drain.
I had a Hero before, and although it had a smaller battery, i would charge it every two days.
When i check tha battery usage, i can see big percentages in cell standby, phone idle and android system. (Its where the percentages should be really low imo..) Things like display, bluetooth etc that were supposed to drain more my phone's battery have much lower percentages..
Maybe all this comes from the snapdragon cpu??
I also have 3g off, always on mobile switched off and brigthness to a really low level (although i think amoled displays dont drain the battery that much)
My battery will last one day the MOST..
I know that the new battery has to be charged a few times before it has its full potential, but i think that somehow battery is getting drained..any tips???
Thanks,
T.

I to have this same issue if anyone has any ideas on this would be great
Sent from my HTC Desire using the XDA mobile appication powered by Tapatalk

You just need to relax
My Desire couldn't get through even one day of usage when I first got it. Several things contributed to this:
1. The battery is not fully conditioned
2. The device is new so I want to play with it all the time. I'd turn it on randomly for no reason whatsoever.
3. I use several widgets that requires updating just because of the novelty (ie, Friendstream, News, Twitter, Stocks, Weather)
Now, I go through about 60-70% charge per day which is fine by me. The only things that have changed is this:
1. The battery has gone though several recharge cycles
2. I only turn on my device when I really want to do something on it.
3. I no longer keep many of the widgets that requires updating and for those that I do keep, I make it update less often.
Eg, Updating your weather every hour is not necessary. Every 3 or 6 hours makes more sense.
Eg. Rather than having your Twitter or Friendstream widget on your homescreen, why not just have a shortcut that goes directly to the application and then set it to sync on launch? It's better than having your widget update when you're not even looking.

Also get an app like battery indicator to give you a numeric readout of your battery life left. My android battery indicator was in the red yesterday and complaining I had to recharge, but battery indicator said I had 12% left and I got 30mins more constant music playing out of it before I got to work and it was still on 5%.

when the battery is running low - you get a button to show battery usage stats.. can you get these through some of the widgets or a comparable app from the market?

almost every update is set to to once a day, or every six or eight hours...so i dont think that the updates drain the battery that much..
its just weird that the most battery usage comes from call standby, phone idle, or android system..

mine was the same, i found its due to sense & all the background updates. currently running helix2 homescreen & now I only go thru abt 50% battery each day & that includes 2 hrs of music each morning.
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk

alright i know this seems stupid but remove all your task killers, i got rid of mine this morning and my battery has been fine normally by now i would have plugged my phone in for a juice up, but not today i had bluetooth on by accident all morning and by the end of the morning it was still at 70% yes i know it sounds stupid but it actually helps

There many interesting suggestions posted here and like most i've been absolutely hammering the battery on my handset simply because its a new and highly entertaining/useful device.
Here's some of my findings...
The battery/app usage screen can be quickly accessed by pressing the menu button on the home screen, selecting settings and "about phone". It helped me nail down some of apps causing excessive drain.
Much like the iphone and any other high powered smart phone, high screen brightness, wireless LAN, bluetooth, 3G and the GPS receiver all take its toll on the battery. One of the biggest drainers is the GPS receiver so use it sparingly, I initially had it on permanently for some of the maps functions but the battery was lasting about half a day! Sadly i've noticed the radio is also a bit of drainer, which is a shame because it makes a nice alternative to MP3 playback.
Data updates and notifications again much like the iPhone have a surprising impact on battery life so set them to manual or long intervals.
In summary, learn as quickly as possible to get the most out of your smart phone by balancing out the hardware and software options.
As a sidenote, I was previously an iPhone fan but this handset has really changed my opinion of how a smartphone should really be. The combination of excellent hardware, an OS thats clearly designed from the ground up for mobile use and an ever growing (open) software base, will in the long term win over Apple's over analy retentive ethos! Top marks also to HTC for their sense UI and application suite, it works on top of Android almost as if it was always part of the OS itself and I just love the integration of social networking features....leaves the iPhone in the dust!

I have noticed that Turning off the Data Connection helps a lot.
Last night I turned data off, before I plugged my phone in for charging. In the morning the battery was showing MAX power. Where normally in the morning would be 97%, because charging stops once the battery is full.
I am still experimenting with all the Apps & Widgets that turn data access ON/OFF, but my conclusions so far, just get a simple widget from the market, and keep data connection off, until you need it.
There is an app that turns data connection off once the screen goes off, but if you download something or wait for something to load and the screen goes off, data will also be switched off which is not what you need.

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!

Android System eating the battery

Hey all, I don't know if anyone has even noticed on their Evo's but on mine, the Android system usually eats most of the battery. I noticed there is a ton of processes under Android system that are running compared to like five on my Hero. I've never seen the core system processes take up more than maybe 15% of the battery, but right now, I'm at like 41% with 16m 6s of CPU total and 47s of CPU foreground. If anyone knows why this is or a way to fix it, please let me know. I'm on the first MR update. I've been able to get a lot of battery stuff figured out, if I can get the system to calm down, then I should be able to get even better battery life than my Hero.

I'm seeing the same thing, android system is at 96% battery use after letting the phone sit overnight. Never saw that on my nexus, this is strange.
Could be related to the fact that everything is syncing up, I just activated last night too.
-------------------------------------
Sent via the XDA Tapatalk App

Yeah, the system seems to have calmed down a bit today, though I also have the OC widget running to keep the processor lower during sleep. I'm guessing its helping, but I'm not sure if there is something else to get it down. I almost never even saw the System show up in usage on my Hero, now its one of the top contributers. I got used to having custom roms on the Hero, but so far all I need on the Evo is unrevoked. I know a lot of people around here don't like it, but I found I only needed a couple of apps that require root and so far love it. That OC widget really comes in handy.

maybe i can clear things up a little bit for you guys...what you see in the battery use section is distributed across 100% of the time since you last had it plugged in. if you notice all the percentage numbers add up to 100%.
if you plug your phone in and turn it on and off on you will see that android system is probably around the 90's thats because android system has used 90+ percent of the phone since you plugged it in....over time that number will lower, becuase other things will start using the battery power... what you see is a percentage based on time. not based on whats actually working RIGHT THEN AND THERE do you guys understand?

I too am having that problem and at 15% battery life warning - it still shows my Android system @ 40-44% usage after 8hrs of work.
I mostly text message all day long due to work - make phone calls and recieve calls from work every hour. GPS on for no more than 15min all day long to get direction when my keymap book doesnt help.
4g off, bluetooth off, background data 15 min only (gps) than off, gps off when not in use, mobile network (3g) off when not in use.
I would have figured my screen being on would have drained my battery life since I check text message every 10-15mins for 8hrs...
So went to work at 9am, 100% life
got off work 6pm, 25% life
I've done all the tricks, cdma only, force stopped a bunch of apps, goggle talk off, sync off, making sure maps/gps has been closed (forced or not)
still disappointed with battery life.
Unrooted Evo
My crappy AT&T Razr lasts me 2-3days with text message + call + 1.5hr of playing Bejeweled a day

*facepalm* you guys don't get it....

grrgrrgrr said:
I too am having that problem and at 15% battery life warning - it still shows my Android system @ 40-44% usage after 8hrs of work.
I mostly text message all day long due to work - make phone calls and recieve calls from work every hour. GPS on for no more than 15min all day long to get direction when my keymap book doesnt help.
4g off, bluetooth off, background data 15 min only (gps) than off, gps off when not in use, mobile network (3g) off when not in use.
I would have figured my screen being on would have drained my battery life since I check text message every 10-15mins for 8hrs...
So went to work at 9am, 100% life
got off work 6pm, 25% life
I've done all the tricks, cdma only, force stopped a bunch of apps, goggle talk off, sync off, making sure maps/gps has been closed (forced or not)
still disappointed with battery life.
Unrooted Evo
My crappy AT&T Razr lasts me 2-3days with text message + call + 1.5hr of playing Bejeweled a day
Click to expand...
Click to collapse
check your hardware version there is a thread about different types of evos and it seems like everyone who has the hardware revision 0001 has really bad battery life. i would exchange your device.

Yes we know, Freelancerx, or at least I do. But after over 8 hours and the system is still using more of the battery than anything else is a little disturbing. Never seen that on any other device. I have Hardware 0002.

I have this same issue with hardware version 0002. I run Fresh 1.0.1, i use Netarchy-toastmod kernal, have latest radio. I have also tried Damage Control (did get slightly better battery life out of DC but not amazingly different)
after 7 hrs since unplugged my andriod system is at 39%, cell standby 28% phone idle 20% display 9%.
i dont have bluetooth, wifi or 4g on. I use juicedefender+ultimate to turn off apn when screen is not on. I use set CPU to underclock when i am unplugged and go down to 128 when screen off and i am Stilll lucky if i make it all day with moderate usage.
Every day it is the same andrioid system is around 40% of the usage for the time it was unpluged.
the following is listed under included packages (not sure if this shows the same for everyone or if it shows what packages are running)
BRCMBluetoothService - Bluetooth is not on so if it shows packages running this may be an issue
Sync Feeds - I have all android syncs off and mail at 6 hours
settings storage
Rosie Utility
Acounts & syync
Account and sync settings
settings
HTC Widget Download Manager
Network Location
Setup
HTC Checkin service
Checkin serivce
VPN services
Android system
Wonder if there is something to the android system on these (ie something not turning off that should) or if we are all just crazy and happen to get the same results.

I had a hardware 0002 model and often experienced the same thing with high system % usage.
My phone was replaced, due to a screen issue, and now I have the 0003 model and seems system % is much lower so far.
I haven't installed any system update yet, so I am on the first original release rom (not rooted yet).
Going to be testing it for a few days before I update and root, so I can make a fair comparison between the original and current oem's.

If your phone is on....Android system is being used.

satch12 said:
If your phone is on....Android system is being used.
Click to expand...
Click to collapse
I think everyone here understands this. the question i think we are trying to figure out is why with similar usage and configurations some people get 40-60% android systems usage while others get 10% over the same period of time.

Android system is way too high.
satch12 said:
If your phone is on....Android system is being used.
Click to expand...
Click to collapse
Yes but if it is configured in an optimal way then android system is always beneath cell standby and phone idle.
For example, today after 15h 28m 23s since unplugged I have...
Cell stanby 38%
Phone idle 37%
Android System.....12%
That is with background processing with auto syncing every hour or so.

Why is batterylife worse on Froyo?

I'm getting 4-5x idle consumption on latest JPA. Hope this is still not final..

I see that next version of Android is already trying to discredit previous one. Don't be afraid, gingerbread, we will update to you anyway =))
On a more serious role - I see approximately the same battery.

Re-calibrate your battery.

A bit worse on my end on IDLE, but same on usage, close to 8hrs of battery life watching a 720p movie.

Razer(x) said:
Re-calibrate your battery.
Click to expand...
Click to collapse
Whats a good method of recalibrating it aside from deleting the battery stats..
Speaking of battery stats, a lot of people misunderstand this as the file that keeps the current charge of the battery.

my standby time of the battery is great. No drop in battery after a full nite of sleep.
however, surfing net on data really eats a lot, 1% every 2 or 3 times.. really fast

Gingerbred said:
I'm getting 4-5x idle consumption on latest JPA. Hope this is still not final..
Click to expand...
Click to collapse
Maybe you just can't understand well the charts.
for example: Music Player 25%, it doesn't mean music player consumed 25% battery; This means that when music player was worked, then battery consumed was 25% - what did consume it? - The music player + display + some refresh + etc...
Yeah, I know a little bit strange logic for "Windows taskmanager" browser kids; but this technic is general in mobil IT (maybe Google should hide this feat, bcoz lot of users are confused; and ask again and again and again and again and again...)

almaalma74 said:
Maybe you just can't understand well the charts.
for example: Music Player 25%, it doesn't mean music player consumed 25% battery; This means that when music player was worked, then battery consumed was 25% - what did consume it? - The music player + display + some refresh + etc...
Yeah, I know a little bit strange logic for "Windows taskmanager" browser kids; but this technic is general in mobil IT (maybe Google should hide this feat, bcoz lot of users are confused; and ask again and again and again and again and again...)
Click to expand...
Click to collapse
I dont even think he is basing it on the battery chart usage, I dont think anyone does.. we are just looking at the battery indicator. If we idle for 8hrs we epxect no more than 2% battery drop.

I get 20% battery drop in froyo for 8 hours during the night without even switching the phone screen on once!
Maybe because of all of the services I have?
I have the following real time services:
1. google stuff
2. exchange (touchdown)
3. Tango
4. whatsapp
5. Chrome to phone
6. SMS Backup+ (backs up SMSs as soon as they arrive)
In addition to that, I have two email addresses configured in the stock email app with 1 hours pull time, and in "accounts and sync" I have facebook and twitter put as sync once a day.
I have a bluetooth headset connected all the time and receiving calls though it, I make and receive almost 1 hour of call, probably 5 SMSs, WiFi is on all the time, and the display is set to auto.
It is also worth mentioning that I have the JPA, OCLF and the 341MB ram kernel (250Hz) with the enhanced GT TWLauncher, no live wall paper, no auto syncing widgets.
My battery lasts almost 8 hours until it is flat, in which I have another charger at work, that a good 2 hours charge keeps me going until sleep time, where it is flat again, and then I put it to charge all night long.
If anyone is having my same configuration and settings, please share your experience.
Oh, I have disabled the haptic feedback completely and the clicking sounds universally also.

samjuan said:
3. Tango
Click to expand...
Click to collapse
This. Tango is broken, it keeps your phone awake, even when the screen turns off. Uninstall Tago and you're good.

samjuan said:
I get 20% battery drop in froyo for 8 hours during the night without even switching the phone screen on once!
Maybe because of all of the services I have?
I have the following real time services:
1. google stuff
2. exchange (touchdown)
3. Tango
4. whatsapp
5. Chrome to phone
6. SMS Backup+ (backs up SMSs as soon as they arrive)
In addition to that, I have two email addresses configured in the stock email app with 1 hours pull time, and in "accounts and sync" I have facebook and twitter put as sync once a day.
I have a bluetooth headset connected all the time and receiving calls though it, I make and receive almost 1 hour of call, probably 5 SMSs, WiFi is on all the time, and the display is set to auto.
It is also worth mentioning that I have the JPA, OCLF and the 341MB ram kernel (250Hz) with the enhanced GT TWLauncher, no live wall paper, no auto syncing widgets.
My battery lasts almost 8 hours until it is flat, in which I have another charger at work, that a good 2 hours charge keeps me going until sleep time, where it is flat again, and then I put it to charge all night long.
If anyone is having my same configuration and settings, please share your experience.
Oh, I have disabled the haptic feedback completely and the clicking sounds universally also.
Click to expand...
Click to collapse
You are a lucky guy,
The first day I used my phone, I got a drop of 15% per hour of continuous use.

EarlZ said:
Whats a good method of recalibrating it aside from deleting the battery stats..
Speaking of battery stats, a lot of people misunderstand this as the file that keeps the current charge of the battery.
Click to expand...
Click to collapse
Charge the battery FULLY, & start discharging it, when it comes down to 5% or something, go delete the battery.bin (search the forums) or some such file. You need root. The restart, Viola, your battery is indicating the exact charge.

fraencko said:
This. Tango is broken, it keeps your phone awake, even when the screen turns off. Uninstall Tago and you're good.
Click to expand...
Click to collapse
May I ask where did you get this information?
AFAIK, phone usage timer "in battery stat" is not increasing while the phone screen is off, indicating that phone is not operational.

samjuan said:
May I ask where did you get this information?
AFAIK, phone usage timer "in battery stat" is not increasing while the phone screen is off, indicating that phone is not operational.
Click to expand...
Click to collapse
I dunno what tango exactly does but i can only confirm this: tango kills the battery in no time. even the newest version claimed to be "fixed for sgs", it still eats 5% an hour in standby just by adding tango.
besides, tango doesnt work very good anyway.

ragin said:
Charge the battery FULLY, & start discharging it, when it comes down to 5% or something, go delete the battery.bin (search the forums) or some such file. You need root. The restart, Viola, your battery is indicating the exact charge.
Click to expand...
Click to collapse
I've read about that by deleting the batterystats bin file, Im still looking for a solid explanation on whats exactly in that file, from my own understanding its just a battery usage history.

EarlZ said:
I've read about that by deleting the batterystats bin file, Im still looking for a solid explanation on whats exactly in that file, from my own understanding its just a battery usage history.
Click to expand...
Click to collapse
here you go
http://forum.xda-developers.com/archive/index.php/t-722862.html

how are you using your phone ?
I see a lot of these threads talking about battery.
But bottom line is - How do you use your phone.
You have to compare apples withe apples.
Only 1 person in this thread described how he / she is using the phone.
Thats something you can compare with
I usually have mine running for 8-10 hours and have to charge. (almost empty then)
But im a heavy user.
Blutooth headset - Wifi - Sometimes GPS.
Aways on fastest netvork.
Exchange and Google mail, facebook and twitter.
Everything consumes battery.
BUT having said this -
I was on a vacation in France, and stopped every service, as im from another country and did not want to pay expensive roming prizes.
The phone now lasted 2-3 days on 1 charge, and this was all new for me
You get the drift
Forget about this battery charge discharge / charge delete stats thingy.
It will absolutely not give you longer battery run time.
Maybe the battery indicator will be slightly different, thats all.
Not worth the effort.
Hope this helps you
MKrogh

I think I found this over on the Desire forums but these steps have helped me immensely. I did these steps just last night, and I unplugged my phone at 12am and now at 9am it's at 90%, with 3G turned on with syncing once an hour.
With your phone on, charge it to 100%. Once it reports it is full, disconnect the phone and turn it off. Plug it in again, charge it until it says it is full (1 minute or so). Then disconnect again, turn it back on, and plug it in again. Charge it until it's full. Disconnect.
I find that after I do that, the battery life improves IMMENSELY for at least a couple days, or until my next flash (still testing).

avary said:
here you go
http://forum.xda-developers.com/archive/index.php/t-722862.html
Click to expand...
Click to collapse
If you checked what you posted you can see Im all over that thread, bottom line is that doesnt work for me what works is I just charge to full while the unit is off. Thats how I calibrate it and it always works on my end.

ragin said:
Charge the battery FULLY, & start discharging it, when it comes down to 5% or something, go delete the battery.bin (search the forums) or some such file. You need root. The restart, Viola, your battery is indicating the exact charge.
Click to expand...
Click to collapse
Hi, I also have a question regarding recalibration. I have the OCLF v2 installed and find / -name battery<somethingwhatever>.bin shows me 3 files batterystats.bin (I'm pretty shure this is because of the oneclick lagfix). Do I have to delete all 3 files or is it only necessary to delete the "real" one?

Rapid Battery Drain - How can I improve?

My battery seems to be draining quite fast. I have removed a lot of bloatware, but I'm not getting the type of performance that others are getting.
It has lost 70% in 5 hours just doing a little browsing, watching a 20minute video and playing a game for half an hour. This was with Wifi on, and mobile data switched off, and background data switched off too.
I've had the device for a week now and I've charged it every day.
Any Ideas on how to improve it?

Bad4ss said:
My battery seems to be draining quite fast. I have removed a lot of bloatware, but I'm not getting the type of performance that others are getting.
It has lost 70% in 5 hours just doing a little browsing, watching a 20minute video and playing a game for half an hour. This was with Wifi on, and mobile data switched off, and background data switched off too.
I've had the device for a week now and I've charged it every day.
Any Ideas on how to improve it?
Click to expand...
Click to collapse
Could well be your brightness level? Are you using autobrightness or is it on a fixed level (I hope its not fixed at 100%!)
If you use autobrightness try using an app like LUX auto brightness instead.

Bad4ss said:
My battery seems to be draining quite fast. I have removed a lot of bloatware, but I'm not getting the type of performance that others are getting.
It has lost 70% in 5 hours just doing a little browsing, watching a 20minute video and playing a game for half an hour. This was with Wifi on, and mobile data switched off, and background data switched off too.
I've had the device for a week now and I've charged it every day.
Any Ideas on how to improve it?
Click to expand...
Click to collapse
If you are rooted get wakelock detector that will tell you what's up

Lennyuk said:
Could well be your brightness level? Are you using autobrightness or is it on a fixed level (I hope its not fixed at 100%!)
If you use autobrightness try using an app like LUX auto brightness instead.
Click to expand...
Click to collapse
Thanks for that, I did have it on Auto brightness for the first few days, but the last few days I switched it off just in case it was that, but the problem remained. I will try LUX auto as you suggested.

jaythenut said:
If you are rooted get wakelock detector that will tell you what's up
Click to expand...
Click to collapse
I am rooted, and thanks for the suggestion of that app - I will get it right now and test with it today, I'll let you know later how I get on.

My guess is a corrupted media file somewhere which is causing your media server to prevent the phone from going into deep sleep. When you go to settings , battery, is media the no 1 juice sucker?

Seifer1975 said:
My guess is a corrupted media file somewhere which is causing your media server to prevent the phone from going into deep sleep. When you go to settings , battery, is media the no 1 juice sucker?
Click to expand...
Click to collapse
Yeah I got rid of the radio and media player from one of the homescreens as they showed quite heavily in wake up time. but the battery still kept draining fast.

Just buy another battery and enjoy the pleasures of experiencing a QHD beast I have 3 batteries (2 standard) and managed to strike a freebie on the 3rd battery ..

Showtek1980 said:
Just buy another battery and enjoy the pleasures of experiencing a QHD beast I have 3 batteries (2 standard) and managed to strike a freebie on the 3rd battery ..
Click to expand...
Click to collapse
I wouldn't mind, but I just bought it 8 days ago, people are experiencing a lot longer battery life than I can.
Immediately just played a game and look how much has gone.
Why is Android system using up so much? I've even got location switched off and Google search etc. is deleted.

If 're not using Xposed Frameowrk for tweaks, looking into enabling ART - I did that and my battery life has been impressive.

nest75068 said:
If 're not using Xposed Frameowrk for tweaks, looking into enabling ART - I did that and my battery life has been impressive.
Click to expand...
Click to collapse
I did try that, but it didn't work and the phone was a bit laggy. Why would android system take up 15% of whatever the battery uses? I'm getting so frustrated, I might do a factory reset.

Here is the picture of what is being used, down 40% in such a short time. :

Bad4ss said:
I did try that, but it didn't work and the phone was a bit laggy. Why would android system take up 15% of whatever the battery uses? I'm getting so frustrated, I might do a factory reset.
Click to expand...
Click to collapse
Aosed to make things smoother not laggy
Sounds like you have something eating up massive resources.

nest75068 said:
Aosed to make things smoother not laggy
Sounds like you have something eating up massive resources.
Click to expand...
Click to collapse
Must be, but I don't have any idea what it is:
Here is a screenshot a few minutes after the last screenshot - another 10% down, and I watched a 8 minute video:

Bad4ss said:
Must be, but I don't have any idea what it is:
Here is a screenshot a few minutes after the last screenshot - another 10% down, and I watched a 8 minute video:
Click to expand...
Click to collapse
How long has that screen been on for?

A shot in the dark:
Do you skype? Skype was draining the battery down in the Nexus 7 2013 even when you were not using it. I disabled it and the battery improved greatly.
Another option:
It sounds to me that there's an app that is draining the battery down a whole lot. I would try to isolate that app (by deleting each one you downloaded one at a time) until you have found it.

IndianaBond said:
A shot in the dark:
Do you skype? Skype was draining the battery down in the Nexus 7 2013 even when you were not using it. I disabled it and the battery improved greatly.
Another option:
It sounds to me that there's an app that is draining the battery down a whole lot. I would try to isolate that app (by deleting each one you downloaded one at a time) until you have found it.
Click to expand...
Click to collapse
I don't have skype, but I like your idea - I've gotten rid of almost all the bloatware stuff. What I think I'll do now is charge it to max. DO a factory reset and not allow Google to start downloading all my apps again.
Funny thing though - when I charged it last night and unplugged it for 3 hours it only dropped a couple of percent. It started dying rapidly after I opened up a few other apps.
What I'll do now is charge do a factory reset, then switch it off, then charge to max before turning it on again. When I first got it, it turned on as soon as I plugged it in. did the same happen for everyone?

What you might want to do is download Greenify on the play store. This will tell you what apps are running in the background and then it will turn them off (hibernate).

Bad4ss said:
My battery seems to be draining quite fast. I have removed a lot of bloatware, but I'm not getting the type of performance that others are getting.
It has lost 70% in 5 hours just doing a little browsing, watching a 20minute video and playing a game for half an hour. This was with Wifi on, and mobile data switched off, and background data switched off too.
I've had the device for a week now and I've charged it every day.
Any Ideas on how to improve it?
Click to expand...
Click to collapse
Go to accounts and uncheck stuff u dont need synced

Bad4ss said:
I wouldn't mind, but I just bought it 8 days ago, people are experiencing a lot longer battery life than I can.
Immediately just played a game and look how much has gone.
Why is Android system using up so much? I've even got location switched off and Google search etc. is deleted.
Click to expand...
Click to collapse
Make sure that you leave the battery charging for about 10-15 minutes more after your cradle light turns green. Sometimes the battery isn't fully charged despite the cradle light turning green. 30 minutes on a game shouldn't be using that much battery consumption.
I usually get about 10-12 hours or more on each of my batteries ( video calling, chatting, games and my 4g is turned on 90% of the time
Try this from Google Play
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm&hl=en
You can read their reviews and install the app but don't download too many battery monitor apps Keep us posted after a few days of monitoring Good luck :good: