[Q] What drains my battery life after installing cyanogenmod 10 for lg p500? - General Questions and Answers

Hi, noob here.
I'm in fact happy to upgrade from my horrible and outdated firmware (2.2) of my LG p500 to Cyanogenmod 10. there is only one (major) problem: my battery life fell to roughly 12 hours even when the screen is mostly off and the battery statistics tells me that it is mostly drained by the screen (50-70%, which does not make sense). I tried installing Easy Battery Saver only to see that it gives me the same stats and does nothing I can't do via the settings.
I don't want to disable wi-fi or mobile networks when the phone is sleeping, I need them. I don't want to deep sleep it. I just want to know what causes this sharp fall in battery life.
Is it because of the updated OS, kernel, whatever? Is it another service that I didn't have in the old firmware? Or is it just my battery being worn out when I was struggling with it trying to install a custom rom for the first time?
Thanks in advance for all the replies.

Think its the kernel, try reflashing it
Sent from my ST25i using xda app-developers app

Go to Settings > Battery, and it tells you what's consuming most of your battery.
If the battery usage doesn't seem to reflect your actual usage pattern, you can try re-flashing.

ppasha said:
Go to Settings > Battery, and it tells you what's consuming most of your battery.
If the battery usage doesn't seem to reflect your actual usage pattern, you can try re-flashing.
Click to expand...
Click to collapse
thanks for the replies. by re-flashing, do you mean I have to flash the rom all over again or just the kernel? and how can I do it?

Make sure that your phone is able to go into deep sleep. If not, your battery will be drained as well.
adilu said:
Hi, noob here.
I'm in fact happy to upgrade from my horrible and outdated firmware (2.2) of my LG p500 to Cyanogenmod 10. there is only one (major) problem: my battery life fell to roughly 12 hours even when the screen is mostly off and the battery statistics tells me that it is mostly drained by the screen (50-70%, which does not make sense). I tried installing Easy Battery Saver only to see that it gives me the same stats and does nothing I can't do via the settings.
I don't want to disable wi-fi or mobile networks when the phone is sleeping, I need them. I don't want to deep sleep it. I just want to know what causes this sharp fall in battery life.
Is it because of the updated OS, kernel, whatever? Is it another service that I didn't have in the old firmware? Or is it just my battery being worn out when I was struggling with it trying to install a custom rom for the first time?
Thanks in advance for all the replies.
Click to expand...
Click to collapse

i have samsung 9001 and it was stock GB rom. after installing JB on it my battery time was reduced by around 10-20%. i think ICS and JB need little more battery than GB. or am i wrong?

Related

Android OS draining battery upto 72 %

Hi ,
yesterday night i dint plug my phone to charging because my battery was above 70 % so i thought its more than enough for next day but i woke up in noon and saw that my phone was on 11% so took a screenshot thought that posting it here might help me
thnx in advance
Try disabling Google now I heard that its a major battery drain to our crespo
Sent from my Crespo using xda premium
You need to describe your device configuration. Phonetype, Firmware, ....
Time for a clean install.
Sent from my Nexus S
nexususer said:
Hi ,
yesterday night i dint plug my phone to charging because my battery was above 70 % so i thought its more than enough for next day but i woke up in noon and saw that my phone was on 11% so took a screenshot thought that posting it here might help me
thnx in advance
Click to expand...
Click to collapse
Try Installing soju factory image from google. I did a clean install wiping dalvic chache as well and my battery is awsome since then and I never disable google now. See in the attached screenshot how flat battery consumption curve when I am not using it.
alien_x said:
Try Installing soju factory image from google. I did a clean install wiping dalvic chache as well and my battery is awsome since then and I never disable anything.
Click to expand...
Click to collapse
I did the samething after getting terrible battery life due to an AudioOut_2 wakelock that never let my phone idle, and the same thing still happens. I'm wondering if a hardware malfunction could cause screwy behavior like this.
Just do "proper clean install", it should help.
Agree with clean install. ROM and kernel choice have a lot to do with battery drain also.
Was this a one time thing or the norm for your phone? If a one time thing wouldn't worry too much but would still shop for ROMs and do a clean install.
I have started using Juice Defender and LUX and my battery life has increased exponentially its features should help any ROM kernel combo.
Sent from my Nexus S 4G
i had a problem with android os sucking the life out of my battery, all was ok for about a week after i installed jb but then my battery life sucked. rather than do a clean instal i turned off auto sync for a couple of days then switched it back on again, since then my battery life has been good and android os has hardly used up any battery. might be worth while trying this first
Yeah. Full wipe is a last resort. At least if you figure out what actually caused it, you can prevent it from happening. I remember my Nexus S had this weird bug where if I put the phone in air plan mode and didn't disable auto sync, the phone would never properly sleep. Never had that issue on any other phone.
Its sometimes ROM related....codename ROM I get high android is but not with androxide
Sent from my Nexus S using Tapatalk 2
alien_x said:
Try Installing soju factory image from google. I did a clean install wiping dalvic chache as well and my battery is awsome since then and I never disable google now. See in the attached screenshot how flat battery consumption curve when I am not using it.
Click to expand...
Click to collapse
You have network disabled... Off course it does not drain!
I cannot tell much about your device setup since not all the details were given, But even my Sprint Nexus S 4G had horrible battery issues. The stock gingerbread was a joke, then the stock ICS did improve to do a couple more hours. Now running an rooted JB and it seems to do 1day and 3 hours at this time.
alien_x said:
Try Installing soju factory image from google. I did a clean install wiping dalvic chache as well and my battery is awsome since then and I never disable google now. See in the attached screenshot how flat battery consumption curve when I am not using it.
Click to expand...
Click to collapse
i am using international nexus s superamoled version and my model number is i9010T so i cannot install soju i have to install sojua and i m on jelly bean right now
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
One Power Guard, an AMAZING product, saves energy for your Android device under the all circumstances. It greatly enhances device performance, improves battery, and powers up standby time and battery life by optimizing system kernel and cpu, avoid phone overheating, shutting down useless programs, preventing from energy-consuming apps, initiating deep-sleep mode, adjusting Wifi parameters, optimizing charging parameters and pacing up setting change , etc.
Google Now
Turning off Google now is what fixed the battery drain for me. Tried other things but only this worked.

annoying battery life issue

Hi folks,
since some days my battery drives me crazy...
Last week i flashed CM10 by nk111. Nice ROM, but my battery lasted only for some hours with normal usage. So I went back to MIUI...problem stayed.
Yesterday I flashed Jellytime and replaced the battery. The problem stayed as well. At 6 pm battery was full, I restored my apps with Titanium, used it a bit and when I was going to bed at 10 p.m. battery was 81%. Getting up at 5:30 this morning --> battery was 41%.
After the battery was full yesterday night I used display for maybe 10 minutes, why there are 36% battery usage by th display?
WTF happened to my system by flashing CM10 by nk111???
Any help is appreciated!
PS:
Baseband-Version: 20.72.30.0833U_3831.17.00.310
Kernel-Version: 3.0.50-g6ea80e4
First, do you have Google now on. It really drains the battery. If that doesn't help install better battery stats and let it go through a couple of cycles, it will help you pinpoint if any apps or wakelocks are draining your battery.
“Microsoft is not the answer. Microsoft is the question. NO is the answer.” – Erik Naggum
I don't use Google Now. I use the same apps withe the same intensity than in better battery times...
Could you please give me a recommendation for a battery stats tool?
Thanks!
flsch said:
I don't use Google Now. I use the same apps withe the same intensity than in better battery times...
Could you please give me a recommendation for a battery stats tool?
Thanks!
Click to expand...
Click to collapse
Use the search, you'll find it in both xda and playstore it's called better battery stats
“Microsoft is not the answer. Microsoft is the question. NO is the answer.” – Erik Naggum
U have an app or something that is running when screen is off.
Find the app and del it.
Sent from the DesiredS
app called carat could also help you find the battery sucking thing. It's a bit more simple than battery stats, you'll like it if you're not an expert.
it doesn't need to be a new app that is sucking power, it could be the poorly made update of some app that you're using for a long time.
I installed both apps.
But in both I can't find any kind of statistics about consumed power by apps or something similar, am I that stupid?
flsch said:
I installed both apps.
But in both I can't find any kind of statistics about consumed power by apps or something similar, am I that stupid?
Click to expand...
Click to collapse
Bbs needs to run for at least a full battery cycle to give you a clear picture, if recommend running it for at least a day
“Microsoft is not the answer. Microsoft is the question. NO is the answer.” – Erik Naggum
I get max 24 hours battery life , sometimes 12 hours , so it's not something to worry. If you speak 2-3 hours and WiFi on another 2-3 hours that is the battery în my case 12 hours max.
Sent from my HTC Desire S using Tapatalk 2
spavian said:
I get max 24 hours battery life , sometimes 12 hours , so it's not something to worry. If you speak 2-3 hours and WiFi on another 2-3 hours that is the battery în my case 12 hours max.
Sent from my HTC Desire S using Tapatalk 2
Click to expand...
Click to collapse
IT IS something to worry, cause battery behaviour changed dramatically while I didn't change my usage of the phone.
40% battery loss over night should be a clear indication of abnormal behaviour.
@jugg1es: thanks for the advice!
flsch said:
I installed both apps.
But in both I can't find any kind of statistics about consumed power by apps or something similar, am I that stupid?
Click to expand...
Click to collapse
you must run carot a day or two, than it will display some apps on the first page and the approximate battery life you get if you kill them. read the manual also..
Yesterday in the evening I realized a 96% entry in the Partial Wavelocks section - AndroidMediaScanner. I freezed it (I know where my pictures and music is located...), did a full load on the battery and for 4 hours the battery remained at 100%. I really thought the problem is solved...but in the morning...31%
But - the 'Media' entry in the android accu stats is gone, I think this is a partial success.
In the BBS app, there is no remarkable value - the biggest is 3,8%.
When I watch the graphs - WiFi and Awake is nearly completetly blue over the whole night (unfortunately, I can't take screenshots right now for any reason).
I'm a bit helpless right now, will charge the phone now and keep an eye on BBS the next hours/days.
androidmediascanner shouldn't be the bad guy, it's a system app that we all have. maybe your battery is the problem...
toxic-hero said:
androidmediascanner shouldn't be the bad guy, it's a system app that we all have. maybe your battery is the problem...
Click to expand...
Click to collapse
I inserted a new battery last week without any change. Don't think both batteries are broken.
The common way to solve this is to do a fresh install. Leave it for a day without any apps yo see if it is ROM related. See if the battery life improve. Install one app per day and monitor your phone awake period with screen on, it should be almost same.
Sent from the DesiredS
Yesterday night I made a full wipe, installed Jellytime and Gapps and went to sleep...
In the morning --> 67%.
Very odd, normally this would probably indicating a defect battery, but it is new!
Maybe a hardware defect?
Maybe RRU Problem?
Hi,
I have a similar problem here. I was using the desire s for a long timne with stock rom (2.x android), a full battery was enough for ~2 days. Then I rooted the device and installed CM10 (NK111 alpha build).
2 things changed:
The battery is empty after 24h or less.
The wireless network is worse than before. This is my subjective impression but there are places at home or in the office where wifi worked before and stopped working.
I'm starting excessive tests (disabling everything, removing apps, running carat) during xmas holidays to find the reason.
My guess what it might be: to root the device I did a downgrade, including a radio downgrade. Now I run baseband 20.23.30.0802U_38.02.01.11 which is known as "Saga Test RUU" and has the lowest version number of the RRUs listed in the forum. I did not found anything about this in the forum or with google but maybe this is the reason.
My average battery stats with normal use (whole day, used the phone a few minutes):
~30% Display
~25% Wifi
~17% Mobile Standby
~5% Android Os
For comparison, my Motorola Defy has in a similar scenario ~5% Wifi and ~3% Mobile Standby

ROM with low battery consumption

Hi everyone.
Please tell me, which ROM here has the lowest battery consumption.
And please advice how long can U use the phone without charging approx. with factory battery.
Moreover, please tell me, if it's possible to flash one ROM and istall the kernel from another ROM.
TX
Do$ said:
Hi everyone.
Please tell me, which ROM here has the lowest battery consumption.
And please advice how long can U use the phone without charging approx. with factory battery.
Moreover, please tell me, if it's possible to flash one ROM and istall the kernel from another ROM.
TX
Click to expand...
Click to collapse
Battery life isn't so much dependent on the rom, as it is on how you use it.
If you have GPS, wifi, and data running all at the same time, expect your battery life to be short.
Your usage will vary depending on your setup, but expect about 16 hours off a charge with the standard battery. This can vary dramatically depending on how you use the phone.
Yes, you can flash other kernels onto different roms, as long as they are compatible. i.e. don't flash sense kernels onto AOSP roms.
My advice is to do some homework and a little more research. A lot of your questions are quite general, and can be answered with a simple poking around.
Do$ said:
Hi everyone.
Please tell me, which ROM here has the lowest battery consumption.
And please advice how long can U use the phone without charging approx. with factory battery.
Moreover, please tell me, if it's possible to flash one ROM and istall the kernel from another ROM.
TX
Click to expand...
Click to collapse
Try ParanoidAndroid 2.99, I go a full day with normal usage (Wi-Fi on, data on, sync on, talking and texting) on the original, never replaced battery. Mik did well on battery life, too. While I loved CM10, it killed my battery in 6 hours with no usage.
6.1dash said:
Try ParanoidAndroid 2.99, I go a full day with normal usage (Wi-Fi on, data on, sync on, talking and texting) on the original, never replaced battery. Mik did well on battery life, too. While I loved CM10, it killed my battery in 6 hours with no usage.
Click to expand...
Click to collapse
I am using the PACMan ROM (so it is CM10) and I get through the day, about 20h and with w-lan on (not always but most of the time) mobile data only when I'm not at home and need something, texting around 30-60 messages...depends
Also I use the kernel from CM9.1...improved the batterylife quite a bit
Greets Vauvenal7
Sent from my HTC myTouch 4G slide
im using stock lite rom and using anker battery im going 2 days without charge
currently 45%

HUGE battery drain with Viper ROM

Hey,
I just switched to the new Viper ROM for the DHD.
It works rockstable and very smooth, but the drain is immense.
The telephone app uses 49% power. How is that possible?
Any ideas on how to fix this bug?
Greetings from cologne.
PS: sry for posting this here. I'm still not unlocked for the developers forums
Sent from my HTC Desire HD using xda app-developers app
I did change my rom to viper 2 weeks ago and change also to lupus v5 kernel, and i have less battery drain than before, also maybe it s a question of Kernel...
lolmachine said:
Hey,
I just switched to the new Viper ROM for the DHD.
It works rockstable and very smooth, but the drain is immense.
The telephone app uses 49% power. How is that possible?
Click to expand...
Click to collapse
Hi there!
Well, I have been using Viper V4 ROM for a while now and on stock Kernel [Viper V4.5 available here if you want http://forum.xda-developers.com/showthread.php?t=2128642] and in the first couple days or so I did notice a massive drain in battery life however this drain did become much better when the ROM "settled".
The second point is that I don't permanently leave my 3G, network data, wifi, etc, always on but only on a "use as you need" basis. This does not only extend your battery time duration obviously but also your eventual battery life. You might want to think long term and start to opt this way also.
Thirdly Viper ROM comes with various tweaks and one of them is for battery economy [you can find that under \menu\settings\power saver] where you can actually program 3 different modes with different times and specs at your own wish.
Fourthly I know of a great personal tweak that really works on Android phones but I really did not have to do it on Viper because as mentioned before the battery life for me is good enough [one charge=over 48 hours!] but I'll teach you nevertheless:
When your battery gets to 3% use the app Root Explorer and go to: \data\system\batterystats.bin and delete this file [batterystats.bin]. Go ahead...no fear...it won't damage your phone!
Then turn on your 3G, network data/traffic, wifi, screenlight to maximum [you must be quick before your phone turns off!!!!!]
Then put the charger in your phone and reboot with it plugged in charging and phone ON...confirm that your 3G, network data, etc is still on.
Leave all of them on until finish 100% charge...remember that will take more time to charge...after charge turn 3G, network data, wifi OFF and use as you need basis or as you would normally use but avoid always leaving them on 24 hours.
When your battery reaches 3% or even 5% this time, do the above again but DON'T EVER DELETE BATTERYSTATS.BIN AGAIN!!!!!
Do the whole process 4 or 5 times and you will notice INCREDIBLE change in battery life from there on. After these 4/5 times you can stop doing the process.
NEVER! Charge your phone at any point in the battery indicator above than 5%
I hope this helps you...please let me know.
Oh and don't forget to click on THANKS.
Thanks alot for your answers!
I've tried to calibrate the battery with your described method, but that doesn't change the high power consumption by the telephon app...
Switching the Kernel looks like a good idea to try. I will do that tomorrow and post my results here
greetings!
Hi there mate!
Yeah sure, that would be my choice also but I'm still stuck with stock kernel due to locked bootloader from SIM block...until then...
See ya later mate.
Sent from my WT19i using xda premium

[Q] Heavy battery drain issue - help troubleshoot

Of late, I have been having heavy drain of battery on my Atrix 2. I am running JB 4.1.2 (672.300.404.ME865.Retail.en.05). Trying to troubleshoot it (including recalibration) since the last few days without luck.
The symptoms...
- Sudden shut down - Have had 50%+ charge levels. Goes down to 5% and shuts down within minutes. (You can see the random drops in the charge levels in the pic)
- Completely drained out battery charges from above 40% when plugged in & charges to 100% in no time. (that 67% charge in the attachment is within 5 mimutes of power plug in)
Does the battery need a replacement?
ravi-atrix2 said:
Of late, I have been having heavy drain of battery on my Atrix 2. I am running JB 4.1.2 (672.300.404.ME865.Retail.en.05). Trying to troubleshoot it (including recalibration) since the last few days without luck.
The symptoms...
- Sudden shut down - Have had 50%+ charge levels. Goes down to 5% and shuts down within minutes. (You can see the random drops in the charge levels in the pic)
- Completely drained out battery charges from above 40% when plugged in & charges to 100% in no time. (that 67% charge in the attachment is within 5 mimutes of power plug in)
Does the battery need a replacement?
Click to expand...
Click to collapse
Try changing battery... even i had same problem with Custom rom. Battery used to last only for 10 to 12 hours but now its more than 17 hours on JB 4.1.2 leak,,,,...Use stock rom. and remove any unncessesary apps and installl ROM again if u want :good:
How old is your Atrix 2? If over a year then battery surely begins to give lesser performance. Disable any other task killer / memory manager & just let OS do its thing. See if installing Media Scan disable from play helps & do not keep using random chargers, make use of original charger as received with phone. Finally see Better Battery Stats. It is said battery stats should never be wiped but see if it helps you and finally search for Apex's better battery life guide for many handy tips.
I disabled notifications, sync, froze higher wakelock apps & my battery life improved a bit but then it is no fun existing in a bare bones environment.
RAD7 said:
How old is your Atrix 2? If over a year then battery surely begins to give lesser performance. Disable any other task killer / memory manager & just let OS do its thing. See if installing Media Scan disable from play helps & do not keep using random chargers, make use of original charger as received with phone. Finally see Better Battery Stats. It is said battery stats should never be wiped but see if it helps you and finally search for Apex's better battery life guide for many handy tips.
I disabled notifications, sync, froze higher wakelock apps & my battery life improved a bit but then it is no fun existing in a bare bones environment.
Click to expand...
Click to collapse
The phone is just about a year and half old. The drop in battery performance is just too drastic, sometimes it doesn't even last an hour after the charge. Will try to go back to original ROM and see if it improves else will probably have to go for a new battery pack.
ravi-atrix2 said:
The phone is just about a year and half old. The drop in battery performance is just too drastic, sometimes it doesn't even last an hour after the charge. Will try to go back to original ROM and see if it improves else will probably have to go for a new battery pack.
Click to expand...
Click to collapse
Look like a battery problem to me its not the ROM but anyways turn off location services and wifi they are a big battery drainer
Use 2G when u dont need high speed.......
Try this app called Greenify https://play.google.com/store/apps/details?id=com.oasisfeng.greenify
(it helps to reduce wakelocks and improves your battery life)
:laugh: Let me know if it helped (btw chck your battery and see if its defected they are amny ways to chck it read up the forums )
i have the same problem whit any rom of 4.2. when the custom rom shows 5% i change to stock ics rom an that show me 45%
aspc2 said:
i have the same problem whit any rom of 4.2. when the custom rom shows 5% i change to stock ics rom an that show me 45%
Click to expand...
Click to collapse
Think mine is clearly a battery issue. Replaced the battery with a new one yesterday and now the phone lasts 6 hrs at least on a single charge.
CM 10.1.3
I couldn't write to developer's forum so I'm asking here.
I've recently firmwared my AT&T A2 CM 10.1.3 and battery drains really fast! The previous build was CM 10.1 (25th of June). I wiped cache and dalvik cache and firmwared CM 10.1.3. At least 3 people report that thie batteries on this ROM drain slow.
What did I do wrong???
danger86 said:
I couldn't write to developer's forum so I'm asking here.
I've recently firmwared my AT&T A2 CM 10.1.3 and battery drains really fast! The previous build was CM 10.1 (25th of June). I wiped cache and dalvik cache and firmwared CM 10.1.3. At least 3 people report that thie batteries on this ROM drain slow.
What did I do wrong???
Click to expand...
Click to collapse
Battery life varies so much from user to user that it is impossible to answer your question without A LOT more information.
Go here:
http://forum.xda-developers.com/showthread.php?t=1179809
Download the app and follow the directions in the op. That and reading through that thread itself should tell you everything you need to know about what is using up your battery.
That being said, everyone has different habits and expectations when it comes to their battery. What one person says is good battery life, another will likely say is bad. So just keep in mind that there is not a right or wrong, just what is right or wrong for you.
If I had a dollar for every time I said that, I'd be making money in a very weird way.
Thank you fro your answer. When I used previous version of CM the battery lasted 3 days with minimal using and turning the flight mode at night on.
As long as I installed newer version with JBX kernel the battery lasts 20 hrs max.
Power Tutor says that the most hungry apps are Android System and Kernel

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