Develop Bugs

debug battery issue

I'm wondering how i can check which app/app's uses my battery power most.
Just put my Desire away for 1 hour, and even in standby mode i'm losing +/- 5% per hour. I don't think this is normal, so if somebody can help me find the problem i would be really thankful

On your phone dialler press: *#*#4636#*#* then tap battery history. Tap other usage, then choose partial wake usage. This should show you anything that is running while the phone is in standby.

socktug said:
On your phone dialler press: *#*#4636#*#* then tap battery history. Tap other usage, then choose partial wake usage. This should show you anything that is running while the phone is in standby.
Click to expand...
Click to collapse
Ok, well not much. I only see the android system is running and my dialer one.

Do you have decent network signal? A poor 3g reception can cause battery drain. Other than that, if you don't have anything preventing the phone from sleeping. I'm lost!

Well my 3g connection is not really strong, but it's terrible either.
Maybe i'll reflash the rom or try another one, and see what happens.

A lot of people swear by Pays 2.1 roms and their battery life, so you might want to test one of them.

And i just got used to the speed of 2.2

Lol, you are not the only person reporting high battery drain on a froyo rom. Nekromantik was also having this issue. He said that 2.1 was much better.
I've tried about every rom out and am back to 2.1 for now.

Maybe i will flash 2.1 back. First i'm going to look for the pay roms you talked about.

HERE they are. I've tried and like the Brave Soul version.

Thnx, downloading now.
Last question. Is there a very big speed defference with the 2.2 roms ? I only know that the linpack benchmarks where amazing with 2.2

To be honest, I don't play games etc on my phone so I don't really know. As far as day to day usage goes I notice no difference in browsing, emailing, texting and calling.

Sometimes i like to play games, just to kill some time
Flashing v2.0 now.

I think my battery is just broken. . .
After flashing it went from 100% to 95 in 3 minutes, when istalling 3 apps.

socktug said:
HERE they are. I've tried and like the Brave Soul version.
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Click to collapse
Had the same problem with the 2.2 ROM. Battery was going very fast. Reflashed Pays 2.1 and everything is better.
Besides I think the Pays has a lot of widgets already in.

Gerigo-Greece said:
Had the same problem with the 2.2 ROM. Battery was going very fast. Reflashed Pays 2.1 and everything is better.
Besides I think the Pays has a lot of widgets already in.
Click to expand...
Click to collapse
So which one do you use. My battery is still running backwards.

Try to wipe your battery stats and put the phone in the charger over the night. Before wiping the battery stats i suffered from a big battery drain aswell, but after wiping it improved.

Zappza said:
Try to wipe your battery stats and put the phone in the charger over the night. Before wiping the battery stats i suffered from a big battery drain aswell, but after wiping it improved.
Click to expand...
Click to collapse
Thnx for the tip, i will try that tonight.

I have Defrost 0.9d last frYo but after i lost my
3G settings as well mms/internet/striming &
cant find that settings I unrooted phone
& after 1st day noticed battery extended work with 2.1 original ROM
& I`m still on original 2.1 ROM, with disire camera&video .

How do you wipe the battery stats?!
-------------------------------------
Sent from my HTC Desire

[Q] High battery drain because of Android-System

Hello,
I have a high battery drain because of "Android System". I lose about 3-5% per hour of my battery in idle state. I turn screen off and didn't use it.
I'm using Slim ICS ROM with franco kernel #174.
Badass Battery shows me that following included processes are in Android-System:
Code:
com.android.systemui
system
android:ui
com.tmobile.themechooser
surfaceflinger
com.android.settings
servicemanager
So anybody know what's the problem here?
I'm already disabled Google Photo Sync, NFC and GPS because I didn't need that. Also googling for the problem doesn't help.
Hope you can help, thanks!

You hit the "Yes this is a question" box
Guess where this thread belongs?
Thread Moved
Friendly neighborhood Moderator

you must install your rom again
this is based on your luck

luckydude said:
you must install your rom again
this is based on your luck
Click to expand...
Click to collapse
Again, I've mentioned this twice today: Bullsh**, I don't mean to be disshonouring, or anything, but please, give proper answers,. It's all good, that you want to help, but only with proper and correct answers.
Right, back to topic;
Go into your dev. settings, and uncheck everything that doesn't need to be checked (Stay Awake, Strict mode, etc.) Undervolt the CPU, that should save a ton of battery charge, and underclock to 900-920 MHz, that is definitly enough, on a dual-core

Thanks for your answer =)
I think my phone is already undervolted through Smartreflex in francos app and I also tried underclocking by setting max cpu to 1036 Mhz (instead of 1200 Mhz).
The problem disappeared after 1-2 charges (don't ask me why..).
And now after flashing Slim ICS 3.9, battery time seems to be ok (for me at least).
Per hour in idle state the phone consumes ca. 2-3%.
I ask myself how do others get 1% drain over night. Is that even possible? Tried very much kernels (franco, trinity, glados and leankernel) and didn't even get near that.
Any tips?

OP Im glad you mentioned the issues went away after a few charges. this has been an issue for some who do not believe that a few charge cycles does anything. well im with you as i always see things sort of "settle down" after a few days of flashing a new rom.

I have the same problem on my Nexus S.
The process consuming battery is surfaceflinger. I can see it on battery screen before the name change to Android System.

Pik3no said:
I have the same problem on my Nexus S.
The process consuming battery is surfaceflinger. I can see it on battery screen before the name change to Android System.
Click to expand...
Click to collapse
I doubt you will find much help here for the Nexus S.

adrynalyne said:
I doubt you will find much help here for the Nexus S.
Click to expand...
Click to collapse
I guess this is an Android problem. Not related to any device.

Android
Yes, i think your prob comes to every Android phone after flashing New rom.
Just wipe Battery stets after flashing. It needs few complete chargings to calibrate the battery.
There are also many apps in the market for this

konsolen said:
Yes, i think your prob comes to every Android phone after flashing New rom.
Just wipe Battery stets after flashing. It needs few complete chargings to calibrate the battery.
There are also many apps in the market for this
Click to expand...
Click to collapse
You need to read this. Also you, OP.

General Crespin said:
You need to read this. Also you, OP.
Click to expand...
Click to collapse
This. People, just give it 2,3 days for the rom to settle after flash. Same for a kernel.

konsolen said:
Yes, i think your prob comes to every Android phone after flashing New rom.
Just wipe Battery stets after flashing. It needs few complete chargings to calibrate the battery.
There are also many apps in the market for this
Click to expand...
Click to collapse
I don't know if was the new kernel I flashed or was the battery stats wipe I did, but seems now my phone have no more RILD/RILJ wakeclocks.

GNexor said:
I ask myself how do others get 1% drain over night. Is that even possible? Tried very much kernels (franco, trinity, glados and leankernel) and didn't even get near that.
Any tips?
Click to expand...
Click to collapse
Yes, it is possible. I get 1 or 2% drain overnight with wifi and mobile data disabled, and up to 5 to 6% if mobile data is enabled overnight.
My record with it is 1 day and 20 hours from 100% to 3%.
I had a LG Optimus Black before and didn't last a day. I'm loving this Galaxy Nexus.
Nuno

One Power Guard can help the system into a deep sleep,Reduce battery drain
downloaded from http://forum.xda-developers.com/showthread.php?t=1889740

Nuno_PT said:
Yes, it is possible. I get 1 or 2% drain overnight with wifi and mobile data disabled, and up to 5 to 6% if mobile data is enabled overnight.
My record with it is 1 day and 20 hours from 100% to 3%.
I had a LG Optimus Black before and didn't last a day. I'm loving this Galaxy Nexus.
Nuno
Click to expand...
Click to collapse
I would like to achieve battery drain like that, seems like what it should be.
I am running AOKP Build 2 and I feel like my battery life is ok but not great. I let my phone sit overnight last night with sync off, but LTE on and it drained roughly 4% an hour. I actually turned off LTE in the middle of the night to see if there would be a difference, and no, it drained at the same speed on 3G as well. I live in an area with pretty good reception actually, GSam says I spend the vast majority of my time with a signal strength of 4/5.
GSam reported that roughly 34% of my battery drain overnight was due to Phone Radio. Another 52% was due to app usage. Drilling into that it tells me that over 40% of the battery drain from apps came from "Android System", "Phone" and "Kernel". Under Android System, which was by far the greatest drain of the apps, it only kept the phone awake 1m18s overnight so that doesn't seem excessive. However, I'm confused as to why, with a good signal/connection my battery would drain at nearly 4% an hour whether connected to LTE or CDMA. Unless the radios in this device are poor, I have a hard time believing there isn't a way to fix this without using something like Juice Defender.
I can't recall because it's been so long, but I don't really remember any ICS ROMs draining this fast. I'm on a clean install of AOKP B2 and I've tried a few different kernels with the same results. Any ideas anyone?

So I wanted to let you all know that after trying a few different ROM/Kernel combinations all with similar idle battery drain, I installed the latest (9/21) CM10 nightly and I only lost about 10-12% overnight last night connected to LTE. That is a much better drain than the 30% or so I was seeing previously. Not sure why but my phone just hasn't been handling the latest AOKP builds very well. I am afraid to try a different kernel right now as I'm leaving town tomorrow for most of the week so I'll leave it as is until I get home next weekend, and see if I get this good of battery life with the latest Leankernel.

Surfaceflinger
The same happens to me, this app appear in BetterBattery stats, Surfaceflinger appear as the culprit of my 45%+ battery consumption caused by Android Sys
When I first rooted my phone (xperia S) I noticed an 31%+ energy consumption by Android Sys, I reflashed and re-rooted and stoped for 2 weeks or so, now 2 days ago I woke up to find that 81% of the battery is being drained by Android Sys, then it lowered to 31-43%. I noticed that when I refreshed the stock "Battery" app ,"Surfaceflinger appear for a moment, I seem that I confirmed with the BetterBatteryStats, Surfacaflinger appears at the top.
Why is this happening? Can something be done about it?
PS: I cannot change kernel, bootloader is locked...

Surfaceflinger and android.process.acore are top battery drainer. I mean how to make them not sucking on battery?

Battery life cm9

How's the battery life on cm9, is it same as stock i.e. about 2 days per full charge???

harsh.ea said:
How's the battery life on cm9, is it same as stock i.e. about 2 days per full charge???
Click to expand...
Click to collapse
For me yes
Sent from my One V using xda app-developers app

maxwen said:
For me yes
Sent from my One V using xda app-developers app
Click to expand...
Click to collapse
+1 or even more

Terrible battery life
I'm not completely sure why but for me it has been terrible. Drains to less than 40% in 5-6 hours. I at first thought it was the overclocking I did, then I set the max CPU speed to 1024 MB and it's still terrible battery life. I have wi-fi and data off most of the time and the phone not being used and it still drains this bad. Can someone help me? I've tried a few different governors under the CM9 settings now, which is best? I notice that wi-fi and the screen are using the most power. Why does wi-fi remain on/drain power even when the screen is off? Sense managed to save my battery and make it last for like 2 days (as mentioned in the OP) by turning off wi-fi and data when the phone was asleep/locked. Also, I used auto-brightness on Sense and got the 2 day battery life. Auto-brightness on CM9 seems to be KILLING my battery.
Someone help me get max battery life out of CM9 for my HTC One V (CDMA) please!

swboland said:
I'm not completely sure why but for me it has been terrible. Drains to less than 40% in 5-6 hours. I at first thought it was the overclocking I did, then I set the max CPU speed to 1024 MB and it's still terrible battery life. I have wi-fi and data off most of the time and the phone not being used and it still drains this bad. Can someone help me? I've tried a few different governors under the CM9 settings now, which is best? I notice that wi-fi and the screen are using the most power. Why does wi-fi remain on/drain power even when the screen is off? Sense managed to save my battery and make it last for like 2 days (as mentioned in the OP) by turning off wi-fi and data when the phone was asleep/locked. Also, I used auto-brightness on Sense and got the 2 day battery life. Auto-brightness on CM9 seems to be KILLING my battery.
Someone help me get max battery life out of CM9 for my HTC One V (CDMA) please!
Click to expand...
Click to collapse
I was going to give CM9 GMS a shot but maybe I'll wait for a few weeks.

atonz said:
I was going to give CM9 GMS a shot but maybe I'll wait for a few weeks.
Click to expand...
Click to collapse
Monkey mentality.... 2 people says yes and one came up with issue with some app sucking his battery, snd result? Another mr perfect with stating about cm9 quality and doubs with no real experience......
Haha, dont install it, your phone will explode...!!

-------

Hunteres said:
Monkey mentality.... 2 people says yes and one came up with issue with some app sucking his battery, snd result? Another mr perfect with stating about cm9 quality and doubs with no real experience......
Haha, dont install it, your phone will explode...!!
Click to expand...
Click to collapse
Actually I had other reasons to wait including concerns about my first flash.
I did end up flashing last night, but not based on the in-depth experience your 1-line reply to this thread described. I actually had any questions I had answered on the IRC channel by a few devs which was highly appreciated.
I don't think there is anything wrong with people waiting for even more stable versions and commenting on that as such. Maybe instead of trying to provoke me through insults you could have tried to convince me. Otherwise your criticism is useless without any sort of construct so please keep it to yourself.

atonz said:
Actually I had other reasons to wait including concerns about my first flash.
I did end up flashing last night, but not based on the in-depth experience your 1-line reply to this thread described. I actually had any questions I had answered on the IRC channel by a few devs which was highly appreciated.
I don't think there is anything wrong with people waiting for even more stable versions and commenting on that as such. Maybe instead of trying to provoke me through insults you could have tried to convince me. Otherwise your criticism is useless without any sort of construct so please keep it to yourself.
Click to expand...
Click to collapse
So make some short.research here mate. Cm9 is extremly stable and just a short step to be final, and.almost all developers are focusing on CM10 nowadays. Thats all and seriously there is nothing wrong with CM9 at all - me running it, without single issue

Monkey mentality...
Hunteres said:
Monkey mentality.... 2 people says yes and one came up with issue with some app sucking his battery, snd result? Another mr perfect with stating about cm9 quality and doubs with no real experience......
Haha, dont install it, your phone will explode...!!
Click to expand...
Click to collapse
Exactly what app did I say was sucking my battery? Oh right, I didn't. I asked for help on how to get max battery life with CM9 (like how I should tune the settings) and of course I get someone who thinks they know everything coming in here just to talk **** on someone else. Why did you even bother to post dude? You just wanna call people out and put them down. Does that make you feel better? Insulting people via text on an internet forum? Real cool man... Who's the real mr. perfect here?
That being said...
The ONE AND ONLY issue I have with CM9 is that it seems to be draining battery way too quickly. The first 2 posts claim to get the same battery life as with stock rom (about 2 days). Can someone (someone who actually wants to help here, not someone who just wants to laugh at people who don't have EVERYTHING figured out and perfect like they do) please tell me how they have set up CM9 to get 2 days battery life. I really really like CM9 and the only thing keeping me from using it is this battery drain.

swboland said:
The ONE AND ONLY issue I have with CM9 is that it seems to be draining battery way too quickly. The first 2 posts claim to get the same battery life as with stock rom (about 2 days). Can someone (someone who actually wants to help here, not someone who just wants to laugh at people who don't have EVERYTHING figured out and perfect like they do) please tell me how they have set up CM9 to get 2 days battery life. I really really like CM9 and the only thing keeping me from using it is this battery drain.
Click to expand...
Click to collapse
Well, I use JuiceDefender to switch off wifi and 3G when the screen is off. Also, I don't use autobrightness, opting instead to set screen brightness to 20-30% (which is still pretty bright IMO). Been getting 1 and a half days out of the battery with low-mid usage (texting/calling/checking Facebook & Twitter)
However, I've only been using CM9 for about 5 days, so you might want to take my advice with a pinch of salt. Hope this helps anyway.

[Q] Battery calibration - Placebo or godsend?

Hi guys -
So I saw in one of the 4.4 ROM threads that someone had used the Battery Calibration app from the Play Store and they claimed it seriously helped their battery life on the geespr. I decided to look at the app in the Store, and I started reading the reviews. I'm perplexed - - many people gave five star reviews claiming it significantly improved their battery life, while others said it did nothing, and a few even said it made their battery WORSE. Then there's the few who have said that wiping the battery stats file (the function that the app fulfills) can't possibly make a difference to your battery life because it only affects how Android reports the battery info. Still further, some say that the battery stats are ALREADY wiped when you flash a new ROM or even just unplug your charger.
So how about it, guys? Can we get a definitive answer about this? Surely our talented devs know the truth?

prowlingfox said:
Hi guys -
So I saw in one of the 4.4 ROM threads that someone had used the Battery Calibration app from the Play Store and they claimed it seriously helped their battery life on the geespr. I decided to look at the app in the Store, and I started reading the reviews. I'm perplexed - - many people gave five star reviews claiming it significantly improved their battery life, while others said it did nothing, and a few even said it made their battery WORSE. Then there's the few who have said that wiping the battery stats file (the function that the app fulfills) can't possibly make a difference to your battery life because it only affects how Android reports the battery info. Still further, some say that the battery stats are ALREADY wiped when you flash a new ROM or even just unplug your charger.
So how about it, guys? Can we get a definitive answer about this? Surely our talented devs know the truth?
Click to expand...
Click to collapse
I've been confused by the same thing. I usually recommend doing it when switching between roms. While I can't give you a definite answer, I have also read that wiping the batterystats.bin file does nothing. This thread here says it does absolutely nothing and explains why. That being said, I am one of the people who have noticed significant increases in battery performance from it - which is why I recommend it. Apparently it shouldn't work though! So now the real question is, why the hell did my battery performance increase to such a high degree afterwards, if it does nothing? I didn't use the app, I just deleted the file once my phone hit 100%.
That thread I posted states it is clearly a placebo, and is even backed up by google. It won't hurt so I still do it because like I said Ive noticed an increase. Now Im completely unsure as to why that increase has taken place.
The app also says to let your phone drain to 0% and then recharge uninterrupted back to 100%. It says that it isn't necessary but helpful. Now this could help your battery IF it was a nickel based battery. Since ours in Lithium based, it can actually hurt performance and shorten your batteries life span.

HPTesla said:
Apparently it shouldn't work though! So now the real question is, why the hell did my battery performance increase to such a high degree afterwards, if it does nothing?
Click to expand...
Click to collapse
This is a real conundrum :\ and it's going to bug the heck out of me.

prowlingfox said:
This is a real conundrum :\ and it's going to bug the heck out of me.
Click to expand...
Click to collapse
Yeah, it appears as if it is simply a placebo. That thread is clear on what that file does and it shouldn't affect performance. Perhaps my increases happened because of changes in charging that just happened to coincide with wiping that file? What I do know is that I was regularly getting 15 hours or so with moderate use. Afterwards it doubled. The longest this battery has lasted for me was a little over 30 hours on a full charge.

HPTesla said:
Yeah, it appears as if it is simply a placebo. That thread is clear on what that file does and it shouldn't affect performance. Perhaps my increases happened because of changes in charging that just happened to coincide with wiping that file? What I do know is that I was regularly getting 15 hours or so with moderate use. Afterwards it doubled. The longest this battery has lasted for me was a little over 30 hours on a full charge.
Click to expand...
Click to collapse
It must just be a combination of factors then...which would explain why some people say it helps and some people say it hurts. Seems there's no real clear trend. Thanks for your replies

prowlingfox said:
It must just be a combination of factors then...which would explain why some people say it helps and some people say it hurts. Seems there's no real clear trend. Thanks for your replies
Click to expand...
Click to collapse
Eh, no problem, thanks for asking. I've been telling people false info based on misguided observations - and that's never good.

It works for me. I used to get like 11 hour with 3 hr screen time, and now I get 13
Sent from my LG-LS970 using xda app-developers app

Samsung galaxy S4 mini battery drain!

Hi everybody...I have this phone and I have a problem.When I charge the phone up to 100% battery and then take it from the charger,battery drops to 99 or less without phone usage...And when I go to sleep and then wake up,the phone lost about 10-15 percent...Can somebody plesase help me?

Check what's keeping your phone awake during idle, "wakelock detector" and "better battery stats". Though you need root for these. You've nor given us any details of what your phone is and what ROM?? Try searching for threads on how to calibrate your phone battery.

Ohh sorry...My phone is S4 mini GT-I9195 LTE....I have stock android 4.4.2 kitkat...I have already calibrated battery and bought new battery...But same problem...

Will be an app causing your phone to wake

I dont know...i searched on the web and someone said that stock kernel have some problems

gamer1182 said:
I dont know...i searched on the web and someone said that stock kernel have some problems
Click to expand...
Click to collapse
Not always the case... Depends when and where your phone was made. Could be a faulty kernel or motherboard but it also could be an app or a setting on your phone or an unclean install. Have you always suffered this issue?

I got phone about 3 weeks ago...and the battery was very bad so i bought new one.I also tried CM 12.1 but the phone is heating in unnormal way but the battery there is better...

You have problems with motherboard. Go to service center to replace it on waranty.
Powered by CM12.1

But my phone isnt on waranty...i got it used haha....ahh nvm,i will live with that problem.thanks for help!

Bad luck then. Normal consumption for our device is 0.2 - 0.3 % per hour in stand by.
Powered by CM12.1

How long does yours battery last with some normal usage?

Almost 3 days with moderate usage.
Powered by CM12.1

Woww thats a very big difference haha.

gamer1182 said:
Woww thats a very big difference haha.
Click to expand...
Click to collapse
Your best bet seeing as unless you pay for a new motherboard is to try one of the battery drain fix kernels on here. Though I think you may be limited to certain compatible ROMs.

Why are you not staying on cm 12.1? For me it's amazing, i observed at least 100% more battery efficiency than stock (4.2.2). I also observed the same problem with high temp too. But i think we can't have it all. When i play games and the outside temperature is about 35 celsius, i do not expect anything less, because this mobile is not designed for this android version. I think that's reasonable and i finally can use my mobile with a joyful way without having my mind always on the battery stats!
Sent from my GT-I9195 using XDA Free mobile app

Thanks guys! And i will try CM 12.1 for longer time to see if anything will be better!