Develop Bugs

[Q] Help diagnosing battery drain - 23% in 1h

For the life of me I can't figure out why my battery drains so fast. I'm beginning to think that I have a defunct battery.
Currently running Manhattan IC1.1.1 ROM with kernel Franco #15 and baseband XXKK6.
I swear everytime I turn on my screen I've lost another 1 or 2%. And this can be minutes apart. As the title says, I've had my phones off the charger for barely over an hour and I'm already under 80%, currently, since I took the screenshots I'm actually down to 73%. I don't think my phone will make it to noon.
I'm particularly confused because it doesn't appear there is any one app as the culprit and my phone looks like it can enter deep sleep without issue. Any ideas?
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I'm now approaching 4 hours on battery and at 55% battery.
Adroid OS 49% CPU total 35m, keep awake 1h 28m. Screen 32%. Screen time on is only 36m 42s.
CPU Spy (since I reset 2 hours 2 minutes ago) has it at 81% deep sleep, 16% 1200 MHz.
Kernel wakelocks:
PowerManagerService (partial wakelocks) at 13m 5.6%,
wlan_rx_wake with 10m 4.1%,
mipi_link 7m 30s 3.1%,
alarm_rtc 5m 20s 2.2%,
radio-interface 3m 30s 1.5%
This is ****ing ludicrous. How is it possible I'm at almost half battery when I've barely used my phone for 40 minutes??
CPU Spy makes it seem like my phone deep sleeps no problem but the keep awake time of Android OS seems to counter that. So frustrated and confused.

Just having my phone on for 5 minutes to look up these numbers dropped it from 55% to 49%.

download watchdog free in the market.
Check your widgets to see if they are not refreshing frequently. Turn GPS off and sync. Syncing facebook and other apps constantly can drain your battery very fast.
let me know.

I'm willing to bet it's userland stuff.
Reset CPU spy timer, turn screen off, don't touch for like 30 minutes or so. Then look at your CPU spy. Then check deep sleep numbers against any other CPU slots.
If your other CPU slots have high runtimes, then it's probably an app that's doing it. Try to disable some syncs you don't need, repeat the same testing process one app/setting at a time to find a culprit (or culprits).

leyvatron said:
download watchdog free in the market.
Check your widgets to see if they are not refreshing frequently. Turn GPS off and sync. Syncing facebook and other apps constantly can drain your battery very fast.
let me know.
Click to expand...
Click to collapse
Thanks, I'll try that and report back. I do have a bunch of widgets - GTasks, Simple Calendar, News & Weather, Word of the Day, Bookmarks, Pandora, Shazam and Spotify. Although I'd think that only GTasks, Simple Calendar, and News & Weather could be the culprits.

bowsersoulstar said:
I'm willing to bet it's userland stuff.
Reset CPU spy timer, turn screen off, don't touch for like 30 minutes or so. Then look at your CPU spy. Then check deep sleep numbers against any other CPU slots.
If your other CPU slots have high runtimes, then it's probably an app that's doing it. Try to disable some syncs you don't need, repeat the same testing process one app/setting at a time to find a culprit (or culprits).
Click to expand...
Click to collapse
Thanks, I'll try that too - althought, what do you mean by CPU slots?

phishie said:
Thanks, I'll try that too - althought, what do you mean by CPU slots?
Click to expand...
Click to collapse
In CPU spy, it lists 1200, 1000, 750, deep sleep, etc. That's what I mean.
The idea is, if you leave it alone for 30 minutes most of the activity should reflect deep sleep. Obviously you're going to have apps that run intermittently even when the phone isn't being actively used.
So after 30 minutes of idle, you see (for example) like 10 minutes or activity on slots NOT on deep sleep, you have some things (apps, etc) that's using up the battery. This is just to confirm that you have an app or some sort that does this. Since everyone has different setup, it's impossible to tell you exactly what it exactly is.
Either way, if this is the case after your testing, you'd need to do some investigation.

bowsersoulstar said:
In CPU spy, it lists 1200, 1000, 750, deep sleep, etc. That's what I mean.
The idea is, if you leave it alone for 30 minutes most of the activity should reflect deep sleep. Obviously you're going to have apps that run intermittently even when the phone isn't being actively used.
So after 30 minutes of idle, you see (for example) like 10 minutes or activity on slots NOT on deep sleep, you have some things (apps, etc) that's using up the battery. This is just to confirm that you have an app or some sort that does this. Since everyone has different setup, it's impossible to tell you exactly what it exactly is.
Either way, if this is the case after your testing, you'd need to do some investigation.
Click to expand...
Click to collapse
Got it - I had a suspicion that's what you meant by slots.

It looks like your syncing is causing the bulk of it. I ended up completely disabling Google Talk and it worked wonders for me. That along with stopping all push notifications (such as email) and setting them to as long intervals as I could manage (15 minutes for exchange, 6 hours for craigslist notifier, 3 hours for weather, etc) improved my battery life dramatically.
Not sure what your governor settings are either but keeping them at conservative or franco's new turtle (a fork of conservative) are always a good idea
EDIT: Also turn off auto-brightness if you have it set, I have mine manually at about 20-30% and it's plenty bright for me.
...aaand one more thing. I also turned off the vibrate and sound on touch features for the android UI. It didn't save me a ton of battery life but it helped a bit

Colemak said:
It looks like your syncing is causing the bulk of it. I ended up completely disabling Google Talk and it worked wonders for me. That along with stopping all push notifications (such as email) and setting them to as long intervals as I could manage (15 minutes for exchange, 6 hours for craigslist notifier, 3 hours for weather, etc) improved my battery life dramatically.
Not sure what your governor settings are either but keeping them at conservative or franco's new turtle (a fork of conservative) are always a good idea
EDIT: Also turn off auto-brightness if you have it set, I have mine manually at about 20-30% and it's plenty bright for me.
...aaand one more thing. I also turned off the vibrate and sound on touch features for the android UI. It didn't save me a ton of battery life but it helped a bit
Click to expand...
Click to collapse
Thanks, good tips. I turned off sound and vibrate on touch for sure, that used to be one of my top kernel wakelock offenders.
I wish there was a setting in stock to sync Gmail at specified intervals rather than just push or no push. I know AOKP has this feature but it wasn't enough to keep me off Manhattan.
I was running Franco (set to turtle) up until this afternoon - although syncing may be the culprit I still think Lean kernel is better at battery management - so I switched back.
Ahh auto brightness. I wish there was a way to keep auto brightness on but offset it by something like -20%. I don't know if it's the adjusting of brightness or the over-brightness of auto brightness that causes the drain but I suspect it's the latter. Wish I could just make auto brightness more conservative then I'd have the best of both worlds.

Is anyone draining at 1% per hour in sleep mode & how are you doing it?

Is anyone draining at 1% per hour in sleep mode & how are you doing it?
I've read some folks draining at less than 1% per hour sleeping. I'd be happy if I can achieve 1% per hour sleeping.
Anyone getting this or better? If so, share with us your secret!
Here's what my phone is like:
LTE version
Kang, milestone 3
Franco 16.2
max 1000, min 350
no undervolt
no solo cpu mod when sleeping
wifi off
gps on
bt on
My best performance is about 1.5% when sleeping. I charged up my phone to 100% and then unplugged it and let it sleep overnight. 7hr:45min later, woke up and it's at 88%.
I did wipe battery stats when switching ROMs, so it's fresh.

I unplugged my phone last night (100% charge) and 8 hours later this morning it was at 94%. So a little under 1% per hour.
Using stock Android 4.0.2 GSM. Wifi was on, Bluetooth off, GPS on, Sync on. Sadly no secrets to share, been pretty happy with the battery life though.

I have stock 4.0.2 and i get even lower numbers than that.. last night i charged it up to 100% and when i woke up (8 hours later) it was down to 96%.
(gsm)

where did you get the franco 16.2?? ^^

I lose about 0.5% per hour in idle. After 8 hours, I have about 96-95% battery left. This is the GSM nexus with the official 2000 mAh extended battery. Not sure if you have GSM or LTE.
Kang, milestone 3
Imoseyon's Leankernel 1.7.4
max 1200, min 350
stock undervolt that is on the kernel
Interactive X governor
wifi off
gps on
bt on
I get around 4 hours of screen on time.

Make sure anything you have syncing is doing it at a moderate level, when I set up my two email accounts they were set to push and sync every 15 minutes, both are way too much for what I need email for so I set them both to an hour.
Also, changed twitter to only manually sync being that it only takes a couple seconds to due and saves the phone from unnecessarily turning on from sleep.
Don't know if this helps but maybe try turning NFC on if you don't use it?
Disable Facebook contact sync as it doesn't work with 4.0 anyways.
If you can, disable bluetooth, same goes with GPS/Location services.
If you have fancy widgets/beautiful widgets, see how often they update location/weather.
Sorry if it seems like every other point here is just checking what is syncing and what not but when your phone is sleeping those are really the only things that will effect battery life.
Edit: Wiping battery stats has been proven to not do... Well anything.

qtx said:
I have stock 4.0.2 and i get even lower numbers than that.. last night i charged it up to 100% and when i woke up (8 hours later) it was down to 96%.
(gsm)
Click to expand...
Click to collapse
same with me ... using stock 4.0.2 ... drain is about 1% per 2 hours

I drain 1% every 2-3 hours. So after 8 hours i'm at 96% overnight. This phone has superb idle drain. This is with wifi connected, 2 gmail accounts synced, 1 calendar, contacts and picasa, gps is on. But i do not have facebook app installed. I am stock 4.0.1 and dont have many apps installed, only what i use.

mine is great when idle but as soon as I start using it it drops precipitously any ideas or fixes?

AndreaCristiano said:
mine is great when idle but as soon as I start using it it drops precipitously any ideas or fixes?
Click to expand...
Click to collapse
Sadly, lower the screen resolution is probably the easiest way that will notch the best gain in battery life. These screens require a lot of power especially at their brightest settings.

Sign out of latitude...
so key to good battery life

I have the GSM Galaxy Nexus running stock 4.0.1 and I consistently lose 4-5% in 6-8 hours overnight with...
- WIFI on
- 3g/4g on
- GPS on
- bluetooth off
- NFC off
- syncing 2 emails, 2 calendars
- lightflow running LED notification for max 2 hour but on silent (not uncommon for a couple of notification go off during the night)
- beautiful widgets with 1 hour sync
- no effort taken to kill facebook or other backgroung apps.

Try out the new 4.0.4. You're standby drain will go down considerably.

OP, are you on a GSM or CDMA Nexus? Are you on 3G only or LTE/3G?

Ravynmagi said:
I unplugged my phone last night (100% charge) and 8 hours later this morning it was at 94%. So a little under 1% per hour.
Using stock Android 4.0.2 GSM. Wifi was on, Bluetooth off, GPS on, Sync on. Sadly no secrets to share, been pretty happy with the battery life though.
Click to expand...
Click to collapse
Yep. That's about the same exact thing I get on a day-to-day basis with the same settings you mentioned. In addition, I don't think I've ever turned NFC off. So pretty much everything but Bluetooth stays on for me overnight.
Sent from my Galaxy Nexus using xda premium

Sounds like you may have a wakelock check your awake time com paired to your screen on time , if its considerably more then you may have some apps waking your device. For me it was Google maps so I disabled it for now till the update. I used betterbatterystas to find the wakelock. Now I get 3.5 hours screen on time and under 1% drain per hour
Sent from my Galaxy Nexus using xda premium

you guys realized that gps and bluetooth do not drain battery unless you are using them so it doesnt matter if they are on. GPS will only turn on when an app needs a lock and bluetooth wont use power unless its transmitting to another device. im not sure about NFC but i would think it works the same way. as long as you dont have anything syncing or losing reception at night then you should only lose about 5 percent in 7-8 hours. this is the case with most android devices that i've own.

best I have got is 2% loss in 7 hours...
running milestone2
-undervolted
-1200/350 interactive
-wifi on
-gps off
-bt off
-nfc on
-syncing gmail, calender, twitter, g+ and voice
-No active widgets
screen time is 4 hours if set manually (2000mah)
unless you are in sunlight, auto bightness is too high

neotekz said:
you guys realized that gps and bluetooth do not drain battery unless you are using them so it doesnt matter if they are on. GPS will only turn on when an app needs a lock and bluetooth wont use power unless its transmitting to another device. im not sure about NFC but i would think it works the same way. as long as you dont have anything syncing or losing reception at night then you should only lose about 5 percent in 7-8 hours. this is the case with most android devices that i've own.
Click to expand...
Click to collapse
Bluetooth searches for devices like Wi-Fi searches for access points. You kinda missed that...
Sent from my Galaxy Nexus using xda premium

ogdobber said:
best I have got is 2% loss in 7 hours...
running milestone2
-undervolted
-1200/350 interactive
-wifi on
-gps off
-bt off
-nfc on
-syncing gmail, calender, twitter, g+ and voice
-No active widgets
screen time is 4 hours if set manually (2000mah)
unless you are in sunlight, auto bightness is too high
Click to expand...
Click to collapse
Basically the same but
GPS on and stock battery
No twitter or voice, sync everything else, plus docs, picasa
1% in nearly 6 hours.
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Best tool, use betterbatterystats and reduce wake locks to a minimum
EDIT:wrong screenshot

Random power drain

Yesterday as I started my day, i pulled my GN from its charger (99%) and made my journey to uni. The trip takes about 50 mins. For the past month now Ive been using poweramp and have had no problems. But when i got to class i realised i had like 25% power during my trip and the back of the GN was a bit warm. I closed all programs and the power drain stopped. I was a bit concerned so a few hours later when i tried playing music again on poweramp but nothing drained the power. So maybe it was a freak occurrence?
So I went to bed last night and the phone was fine. something around 80% power. I woke up 5 hours into my sleep to check on my phone (its a bad habit) and went back to sleep for another 2-3 hours. When i woke up i found my phone had discharged a whole lot of power again randomly in that space of a few hours.
So what the hell happened in that time?! All I did was turn the screen on and turned it off. My usage patterns have not changed.
here is an screen shot of my power usage. You can see the first drop of power, thats nothing of concern as i was playing angry birds space before bed. Then you see the straight line as the phone was idle while i was sleeping. The next drop is when I woke up to check my phone and that's when the discharging happens again. Then you see it recovering when i woke up and closed all the background apps in hope that it would stop the power drain..which it did.
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Anyone have some ideas as to what is causing this?
Also keep in mind that before the first instance of power drain my phone configuration had not changed a single bit besides a light flow lite update the night before.
edit: oh FYI, running stock 4.0.2 on yakju

Any apps that you updated or installed yesterday? New rom? Did you make any changes to your phone at all since yesterday?
Sent from my Galaxy Nexus

Mitchmoney said:
Any apps that you updated or installed yesterday? New rom? Did you make any changes to your phone at all since yesterday?
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
No new apps, but some app updates. I know at least light flow was updated.
this random power discharge is really getting annoying. It happened again today.
A new symptom seems that the video doesnt load on the phone. for example, trying to load youtube or recorded videos saved on my phone.
Originally i thought my 3g was playing up but when it wouldnt load a video i recorded that was a bit unusual. in fact the gallery app froze and crashed.

Did you search the forum and install CPU Spy and Better Battery stats?
Get some data and find out what is causing wakelocks. Your phone has a lot of "wake" time.
See with CPU spy how much it is spending in Deep sleep and with Better Battery stats look what is preventing it from going into that state. If it's an app: simply remove it.

How's your signal service been lately? I get pretty stank reception at work so my gnex gets pretty warm at the top and battery life suffers. I just put it on airplane mode and reset the radio to force it to chill out for awhile

Diger36 said:
Did you search the forum and install CPU Spy and Better Battery stats?
Get some data and find out what is causing wakelocks. Your phone has a lot of "wake" time.
See with CPU spy how much it is spending in Deep sleep and with Better Battery stats look what is preventing it from going into that state. If it's an app: simply remove it.
Click to expand...
Click to collapse
Thanks ill try that. Just installed CPU spy. Is there an alternative to better battery stats? Don't really want to fork out something to debug this.
I originally used OS monitor, and i checked what was running while the abnormal discharge was happening but nothing showed up.
You make a good point about the amount of wake time though. That long stretch where i was sleeping, my phone shouldnt be waking up that much should it? It didnt seem to affect battery life that much.

pdiggitydogg said:
How's your signal service been lately? I get pretty stank reception at work so my gnex gets pretty warm at the top and battery life suffers. I just put it on airplane mode and reset the radio to force it to chill out for awhile
Click to expand...
Click to collapse
Reception has been normal (since I'm around the CBD a lot)

csirac said:
Thanks ill try that. Just installed CPU spy. Is there an alternative to better battery stats? Don't really want to fork out something to debug this.
I originally used OS monitor, and i checked what was running while the abnormal discharge was happening but nothing showed up.
You make a good point about the amount of wake time though. That long stretch where i was sleeping, my phone shouldnt be waking up that much should it? It didnt seem to affect battery life that much.
Click to expand...
Click to collapse
Better Battery Stats is the one I use and is recommended here a lot. It gives you insight in the wakelocks from the kernel, as well as from apps. Don't know about the alternatives. It's definately about the wakelocks. Your phone should be in Deep Sleep for 90% or so when you don't touch it (depending on your sync frequency off course).

Diger36 said:
Better Battery Stats is the one I use and is recommended here a lot. It gives you insight in the wakelocks from the kernel, as well as from apps. Don't know about the alternatives. It's definately about the wakelocks. Your phone should be in Deep Sleep for 90% or so when you don't touch it (depending on your sync frequency off course).
Click to expand...
Click to collapse
The only account that is sync'ed is my gmail. The other two listed (twitter and dropbox) is turned off. Are there other options to turn the freq of when the phone syncs?
It's so strange because before these problems came about I had good battery life. ie: 3+hours of screen time.

csirac said:
The only account that is sync'ed is my gmail. The other two listed (twitter and dropbox) is turned off. Are there other options to turn the freq of when the phone syncs?
It's so strange because before these problems came about I had good battery life. ie: 3+hours of screen time.
Click to expand...
Click to collapse
You usually set it at System Settings, accounts & Synchronisation but some apps allow you to set it within the app... There are apps that allow you to make profiles so that, for instance at night, your device turns off all data. I used to use Juicedefender but that was IMHO more a placebo effect then a real improvement.
I definately think you should install the mentioned apps and after such drain re-appeared analyse what happened.

So after a little bit of troubleshooting I narrowed the problem down to Light Flow Lite.
Last night I went to bed with 100% charge. It discharged normally throughout the night until 4 hours in when I received an email. I woke up about an hour later and saw this so i suspected it was light flow. I cleared the notification and went back to sleep. I woke up about 30 mins later and was sad to see that my fears were confirmed. Battery discharge had settled down and was acting as normal. Just to be 100% sure though, i sent an email to myself to set off a notification and left it for another 30 mins, and as you can guess, the battery started draining excessively again.
Here is the screenshot. First part obviously is when im sleeping. then that dip is the email coming in. That TINY TINY dip upwards is another email coming in a min after I cleared the original email. So the battery drain continues until i wake up and clear it again. This time no more notifications came through and the battery drain settles down.
Again keep in mind that I have used Light Flow Light for 2 months now without problems.
Anyone else experience problems with Light flow or Light Flow light since it was updated on the 20th March?

I have been great with my light flow lite..I had a problem with my own battery when I updated Google chrome.. uninstalling that fixed my problem..
Sent from my Galaxy Nexus

GSII T989 battery drains to 7% then slows significantly?

I have 3 new GSII T989 phones on our plan. They work very well, but battery life can be inconsistent.
I have managed to get as much as 5 days out of them, that is with nearly 0 usage and stock apps disabled and all accounts and sync removed.
But I noticed, that regardless of usage, once the battery reaches 7% it starts draining much much slower. Maybe as little as 1% every 5 hours.
It seems clear, that some system processes run draining the battery, but stop at 7%.
With the works drain, the phone could drain to 7% in one day and still stop. I did also notice that the worst drain happens shortly before a OTA update on each phone. The Device Management process is one I cannot disable or even stop does the updating. It does no show up in battery stats.
Can anybody confirm drains from Device Management or other completely locked system apps that might drain until 7%.
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Notice sharp dips in battery life, some better curves, even in airplane mode, it still drained, but at the end starting at 7% the phone hardly drains.
I do see the phone wake a lot, but betterbattery stats does not show signification wakelockes.
GSam Battery monitor is the only program to successfully tell me what is causing a drain.
Here, at the initial drain I looked in Gsam and it showed twlauncher eating 70% of the battery. I cleared the data and force-stopped it it and was happily surprised to find that I now only drained 1% every 3 hours. I notice something that surprised me. When the launcher re-started it fist showed me messages, then contacts than the system manager application with the option do disable diagnostics which I did, but that alone was not the issue since I have not been able to reach such low battery drain even with diagnostics disabled.
I don't know why it awoke so much and drained later as better battery stats did not show any wakelocks over 1 minute (forgot to take a screenshot)
Later on GSam told me that the phone app itself was draining battery, after 1 call and text message, and once I killed it I once again had great battery life at 3 hours per 1% until it started draining again.
Has anybody here noticed or figured out the 7% issue. Is there something in the stock rom that stops at 7%, and is there a way to stop it without a new rom.
I have searched and did not find any references regarding the 7% issue I have with every phone.
Thank you.

elkinm said:
I have 3 new GSII T989 phones on our plan. They work very well, but battery life can be inconsistent.
I have managed to get as much as 5 days out of them, that is with nearly 0 usage and stock apps disabled and all accounts and sync removed.
But I noticed, that regardless of usage, once the battery reaches 7% it starts draining much much slower. Maybe as little as 1% every 5 hours.
It seems clear, that some system processes run draining the battery, but stop at 7%.
With the works drain, the phone could drain to 7% in one day and still stop. I did also notice that the worst drain happens shortly before a OTA update on each phone. The Device Management process is one I cannot disable or even stop does the updating. It does no show up in battery stats.
Can anybody confirm drains from Device Management or other completely locked system apps that might drain until 7%.
View attachment 1843638
View attachment 1843640
Notice sharp dips in battery life, some better curves, even in airplane mode, it still drained, but at the end starting at 7% the phone hardly drains.
I do see the phone wake a lot, but betterbattery stats does not show signification wakelockes.
GSam Battery monitor is the only program to successfully tell me what is causing a drain.
View attachment 1843648
Here, at the initial drain I looked in Gsam and it showed twlauncher eating 70% of the battery. I cleared the data and force-stopped it it and was happily surprised to find that I now only drained 1% every 3 hours. I notice something that surprised me. When the launcher re-started it fist showed me messages, then contacts than the system manager application with the option do disable diagnostics which I did, but that alone was not the issue since I have not been able to reach such low battery drain even with diagnostics disabled.
I don't know why it awoke so much and drained later as better battery stats did not show any wakelocks over 1 minute (forgot to take a screenshot)
Later on GSam told me that the phone app itself was draining battery, after 1 call and text message, and once I killed it I once again had great battery life at 3 hours per 1% until it started draining again.
Has anybody here noticed or figured out the 7% issue. Is there something in the stock rom that stops at 7%, and is there a way to stop it without a new rom.
I have searched and did not find any references regarding the 7% issue I have with every phone.
Thank you.
Click to expand...
Click to collapse
Is this the stock battery or the extended battery?

jrosetto said:
Is this the stock battery or the extended battery?
Click to expand...
Click to collapse
This is with the stock battery. The same behavior is seen or all 3 phones so I don't think the battery itself is at fault.
I would like to root 1, stop the stock apps like Device Manager and see if it helps, but I would prefer not to have to root all the phones.
Thanks again.

elkinm said:
This is with the stock battery. The same behavior is seen or all 3 phones so I don't think the battery itself is at fault.
I would like to root 1 stop the stock apps like Device Manager and see if it helps, but I would prefer not to have to root all the phones.
Thanks again.
Click to expand...
Click to collapse
I am lucky to get a day out of my phone with the stock battery so I would be grateful of anything more. As far as hitting 7% my guess is it sustains that voltage the longest since that is it's end of battery.

I went ahead and rooted the phone.
The first thing I did was use App Quarantine to disable Device Management and many apps that I could not disable before.
Unfortunately, nothing changed and the phone still drains as before until if gets to 7%.
I am still trying, and I think I will need to try a different launcher soon.
I am very open to any suggestion you guys may have.
Thanks.

elkinm said:
I went ahead and rooted the phone.
The first thing I did was use App Quarantine to disable Device Management and many apps that I could not disable before.
Unfortunately, nothing changed and the phone still drains as before until if gets to 7%.
I am still trying, and I think I will need to try a different launcher soon.
I am very open to any suggestion you guys may have.
Thanks.
Click to expand...
Click to collapse
What about installing the Rogers Jellybean update?

Bad battery life.

I'm currently running MOAR 6.1 and I'm getting really bad battery life using ktoonz kernel. How do I get better battery life?
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The screen looks to be the largest contributor to your battery drain by a large margin. I know my GS3 is set to auto-adjust the screen brightness based on the lighting in the location the device is being used. This is a double-edged sword though because in well-lit areas the screen brightness is all the way up. You can turn off the auto-adjust in your settings and set the brightness manually. There are even some toggle widgets out there that allow you adjust between a few brightness settings using a little 1x1 widget.
The GS3 screen is great, but with the brightness turned all the way up I've noticed some pretty decent drain on the battery. I'd start there if I were you.

I get about the same battery life on mine too. I just started carrying a portable charger with me because I got sick of getting 1-2 hours of screen time before my battery was nearly dead. I'd suggest investing in a spare battery or two or a portable charger unless you enjoy having to constantly worry about conserving your battery instead of using your phone how you want.

Ma}{imus said:
The screen looks to be the largest contributor to your battery drain by a large margin. I know my GS3 is set to auto-adjust the screen brightness based on the lighting in the location the device is being used. This is a double-edged sword though because in well-lit areas the screen brightness is all the way up. You can turn off the auto-adjust in your settings and set the brightness manually. There are even some toggle widgets out there that allow you adjust between a few brightness settings using a little 1x1 widget.
The GS3 screen is great, but with the brightness turned all the way up I've noticed some pretty decent drain on the battery. I'd start there if I were you.
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I always have my brightness set to the lowest possible setting with auto brightness off. :\
davelikestacos said:
I get about the same battery life on mine too. I just started carrying a portable charger with me because I got sick of getting 1-2 hours of screen time before my battery was nearly dead. I'd suggest investing in a spare battery or two or a portable charger unless you enjoy having to constantly worry about conserving your battery instead of using your phone how you want.
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I really like MOAR but on other roms/stock, I get about 17 hours+ of usage time with about 3+ hours of on screen time. So I'm not sure if its MOAR that causes the huge battery time or if its my ktoonz settings which is underclocked to 1242 MHz using gov. Ktoonservative and sio as the I/O

You have a few large chunks where the phone is awake but the screen is off. Usually that indicates a wakelock of some sort. I would download Better Battery Stats (search for it on XDA it's free for members). Let it run for a while and see whats causing the wakelocks.
Could be apps running in the background. Also i see you have good service in your screen shot, but if you travel into poor service your battery life will suck. You could also try a different kernel.

Some typical things that will cause bad battery life or lots of wake locks: Facebook sync/notifications (Turn them off!) Unless you absolutly need to know when someone post something every second.. Email sync times.. (if your using it, change frequency from 15 min to Every 4 hours or something. When it syncs its running that app, Data and all that goodness. Greenify works wonders! Use this app to hibernate your apps after you open them (Works on non system apps) Have been using for a long time. Other things are like Weather refresh, If set to update every 15 min.. again your going to get wake locks. Screen time out, Set to lower number so it'll auto turn off after 15-30 seconds.. if you need more just touch screen. Usually helps.. I can see typically 2.5 Hours screen on with over a Day on MOAR. (Moderate use.. Once i'm home it's sitting on my counter and not being used till the next day) These will help some with battery life overall.

Speedin07si said:
You have a few large chunks where the phone is awake but the screen is off. Usually that indicates a wakelock of some sort. I would download Better Battery Stats (search for it on XDA it's free for members). Let it run for a while and see whats causing the wakelocks.
Could be apps running in the background. Also i see you have good service in your screen shot, but if you travel into poor service your battery life will suck. You could also try a different kernel.
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Ill give it a try when i get home.
milky1112 said:
Some typical things that will cause bad battery life or lots of wake locks: Facebook sync/notifications (Turn them off!) Unless you absolutly need to know when someone post something every second.. Email sync times.. (if your using it, change frequency from 15 min to Every 4 hours or something. When it syncs its running that app, Data and all that goodness. Greenify works wonders! Use this app to hibernate your apps after you open them (Works on non system apps) Have been using for a long time. Other things are like Weather refresh, If set to update every 15 min.. again your going to get wake locks. Screen time out, Set to lower number so it'll auto turn off after 15-30 seconds.. if you need more just touch screen. Usually helps.. I can see typically 2.5 Hours screen on with over a Day on MOAR. (Moderate use.. Once i'm home it's sitting on my counter and not being used till the next day) These will help some with battery life overall.
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I have greenify running. I have Facebook greenified. I have email sync off and weather refresh set to every 6 hours. Sync is off. Screen timeout is set to 15 seconds on lowest brightness. Ill try better battery stats to check for any wakelocks.
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djpabz23 said:
I'm currently running MOAR 6.1 and I'm getting really bad battery life using ktoonz kernel. How do I get better battery life?
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Have you checked out the thread HERE. It can definately help you on your way to better battery life.