Develop Bugs

[Q] Seriously? Cyanogen ROM kills battery like this?

I have done a bunch of reading since my first flash to Cyanogen's 6.1 but not finding really satisfactory answers.
With the old rooted stock deodexed...I was getting about 14-15hrs of moderate-high use. So basically I pulled the cord at around 7am and plugged back in around 6pm with about 40%.
Was fine.
Flashed 6.1 last night and now I am two hours off charge and sitting at 58%!! I have all syncs turned off and I have no wifi/gps/4g running. The ONLY widget at the moment is weather and it only updates when I hit refresh.
My search has shown something called battery calibration...but that doesn't make sense to me. I have done the long charge, power off charge, power on charge etc... But since I have a wall battery charger I have just moved away from that and occasionally swap out my batteries for a full charge in that thing.
Does that 6.1 REALLY need another voodoo approach to battery life? Also the threads I have found seem to be for the nexus one or the HTC Magic(?).
Anyone else suffering HORRIBLE battery life after flashing 6.1?
Anyone got a link to a fix for the EVO and maybe something that I can get through the day with (do not have my charger at work)?

When I flashed CM7 to my wife's phone the battery was horrible (Less than 2 hours). I recalibrated the battery and the next charge lasted 2 days. Give this a try:
Battery recalibration
If you're experiencing higher than normal battery drain, try the following:
Charge the device to full battery; let it keep charging until the battery says it is fully charged. Do not just wait until the light is green, it isn't always fully charged, causing a lot of inaccuracies. (You can check by going to: Settings -> About device -> Status -> Battery Level = Full.)
Boot to recovery mode and delete the battery stats
NOTE: To have the most accurate of battery stats, reboot the device immediately after wiping the battery stats and wait for CyanogenMod to boot completely to the desktop. Once your entire boot is done and you have full access to the device, go ahead and pull the charger and continue with this troubleshooter.
Do not charge the device until after draining the battery completely, resulting in it automatically shutting off.
Recharge the device completely and then use as you normally would.
Also, CM6.1 or CM7 should get decent battery life. If it still doesn't try flashing a different kernal. I found that savaged zen bfs sbc kernal extended my life considerably.

sablesurfer said:
I have done a bunch of reading since my first flash to Cyanogen's 6.1 but not finding really satisfactory answers.
With the old rooted stock deodexed...I was getting about 14-15hrs of moderate-high use. So basically I pulled the cord at around 7am and plugged back in around 6pm with about 40%.
Was fine.
Flashed 6.1 last night and now I am two hours off charge and sitting at 58%!! I have all syncs turned off and I have no wifi/gps/4g running. The ONLY widget at the moment is weather and it only updates when I hit refresh.
My search has shown something called battery calibration...but that doesn't make sense to me. I have done the long charge, power off charge, power on charge etc... But since I have a wall battery charger I have just moved away from that and occasionally swap out my batteries for a full charge in that thing.
Does that 6.1 REALLY need another voodoo approach to battery life? Also the threads I have found seem to be for the nexus one or the HTC Magic(?).
Anyone else suffering HORRIBLE battery life after flashing 6.1?
Anyone got a link to a fix for the EVO and maybe something that I can get through the day with (do not have my charger at work)?
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Click to collapse
Thats a old cm, cm is now cm 7... maybe try that one..
Sent from my PC36100 using XDA Premium App

Yea Cm6 is dated. But that shouldn't matter.. I actually had fantactic battery when I was on cm6, much better than what I get on cm7.
First, check spare parts for wakelocks and make sure you don't have any. After that, follow Fazulkas advice to reset battery stats, follow it correctly tho. I never thought wiping stats would make a difference, but it surely does.

Ok, I'll try that process when I get home tonight. (Guess I can survive w/o a phone for a few hours?!?! :^O) Haven't set up more than just the google account on this ROM as I wanted to test it first. So maybe tomorrow it will win me over.

DATED?!?! LOL! It was only just a final release a few months back...;^) It has all the important stuff working where as 7 doesn't and it is still a RC.
:^P
(Have you seen my sig? Old dogs only try the proven tricks thank you very much. :^)

CM6 is not dated. In fact CM 6.1.3 is the most current stable-release version of CM available!
Sent from my PC36100 using XDA App

Its not the ROM. Anytime you flash a ROM, you need to calibrate your battery. By calibrate it isn't the plug in over and over method.
You charge to 100%, discharge it fully. Charge back to 100% then wipe battery stats in recovery. Then use your phone.

Flashed 6.1 last night
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There is your problem. Anytime you flash a new rom, you need to give it at least a day or two to fully calibrate everything in the rom.

sekigah84 said:
Its not the ROM. Anytime you flash a ROM, you need to calibrate your battery. By calibrate it isn't the plug in over and over method.
You charge to 100%, discharge it fully. Charge back to 100% then wipe battery stats in recovery. Then use your phone.
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HUH...this is my fourth ROM flash, first one away from stock rooted and I have never had this issue. Maybe the stock ROMs do not have this issue?

Horrible Battery life!! Any Advice?

Hello everyone, I lately have been getting horrible battery life!! I keep brightness on lowest setting, use wifi when possible, turn down haptic feedback all the way etc. do my best to save battery!
So my epic is Rooted with CWM3, and the latest frozen syndicate rom installed. Is it because my phone is rooted and the syndicate rom drains it more? is that why i have bad battery life? Does having your phone rooted drain battery life?
I ordered a Seidio 3300mah battery and got it yesterday in mail. Put in phone, then charged rest of night about it. Im using it today and am still receiving poor battery life, my friend who has epic ordered a cheap hong kong battery and is getting better battery life? I read something about conditioning your battery and draining it to 0% then charge fully to 100%? How does this work please explain?
Can someone just please help me use my new battery to its potential and help me out here?

Draining your battery for battery calibration is unecessary... there are a few threads regarding it...
Sent from my SPH-D700 using XDA App

so what should i do to improve battery life?

Rooting and custom ROMs reduce battery usage. You need to supply more details. Are you overclocking...that burns up battery usage. Have you tried Spare Parts to see what is using your battery? Has 3G been out in your area and the phone is searching for a data signal?

kennyglass123 said:
Rooting and custom ROMs reduce battery usage. You need to supply more details. Are you overclocking...that burns up battery usage. Have you tried Spare Parts to see what is using your battery? Has 3G been out in your area and the phone is searching for a data signal?
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im not overclocking. spare parts? 4g is off- not in my area. 3g is on. what should i do. should i use my phone reguarly till it drains 0, then fully charge? i read something about wiping battery stats, shud i do tht? and i also read tht ec05 is horrible on battery life. should i go back to eb13 possibly or wht? and recommended roms?

try this thread:
Calibrate Battery thread - This is how you do it!
http://forum.xda-developers.com/showthread.php?t=884684&highlight=battery+stats
I used "The Powered Off Charge way" method and it did seem to make a difference.
Hope that helps, good luck

iModMM said:
im not overclocking. spare parts? 4g is off- not in my area. 3g is on. what should i do. should i use my phone reguarly till it drains 0, then fully charge? i read something about wiping battery stats, shud i do tht? and i also read tht ec05 is horrible on battery life. should i go back to eb13 possibly or wht? and recommended roms?
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Click to collapse
I have noticed no difference in DK28, EB13 or EC05 in my battery life. Do the calibration suggested in the post above. As for ROMs it is about personal choice. I have been with Bonsai for awhile now. I hear the ACS ROMs are very stable. Syndicate Frozen is good, Midnight is good. Read the OPs, learn what they remove and improve and see if that is what you are looking for.

Running SRF 1.1, with a custom theme, brightness at lowest setting, haptic feedback all the way up, because I need to know if someone is calling, I regularly get 30+ hours per charge. The two Chinese knockoffs I have get about 26 or so hours per charge.
I have recently seen a drop in my battery, spare parts on a couple of occasions should my phone would not sleep. Sometimes a reboot would fix this, but reflashed just to be safe.
After the reflash I was still getting bad battery life but spare parts showed no issues, so I started doing the airplane toggle again and that seems to of fixed it.

socos25 said:
Running SRF 1.1, with a custom theme, brightness at lowest setting, haptic feedback all the way up, because I need to know if someone is calling, I regularly get 30+ hours per charge. The two Chinese knockoffs I have get about 26 or so hours per charge.
I have recently seen a drop in my battery, spare parts on a couple of occasions should my phone would not sleep. Sometimes a reboot would fix this, but reflashed just to be safe.
After the reflash I was still getting bad battery life but spare parts showed no issues, so I started doing the airplane toggle again and that seems to of fixed it.
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whats spare parts?

Spare parts is a free program available in the market place. It shows you more detailed statistics on what is using your battery juice.

Undervolting maybe. But I got stablilty issues. ymmv anyway.
My advice is
1. Set max clock to 800mhz and min to 200mhz. The CPU is volted -75 over 1ghz and 200 is volted the same as 100mhz. I use the Conservative governer but Ondemand works well too.
2. Get a good custom rom/kernel. CM7 and Frankenstein got the best through all my testing.
3. Brightness at lowest, turn off "Notify me when Wifi networks are available", Turn off syncing for contacts, the two GPS options, etc.
4. Take out as many applications as possible(Personal preference. I think it makes a difference) But I mean stuff you don't use. I take out Bluetooth, GPS, DRM, SNS, and most stock applications. If you're using Handcent you don't need stock SMS and vice versa.
5. If you're on 2.2 and lower I recommend a program like JuiceDefender to turn off 3G when your screen is off. The latest update on the free version removed the option to filter applications using data while the screen is off.
6.Enable Airplane mode on boot up. Then turn it off and use normally. TWS
7. Definitly calibrate your battery.
8. *Insert unreasonable battery tip here*
Oh and spare parts can be installed directly from the market. It's a program that allows monitering and for changing animation speeds and such. I don't use it for anything. You should also be able to go into settings -> about phone -> battery usage and see most of what spare parts would.

is tht one thread the one guy posted to calibrate the battery? will it work?

iModMM said:
is tht one thread the one guy posted to calibrate the battery? will it work?
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Especially with a new 3300mAh battery! I recommend the top two as the third didn't work for me.

Juice defender on aggressive mode and setcpu on conservative mode increases my battery life when on standby quite a bit.

Don't drain your battery to zero it destroys our batteries. Don't use juice defender. If there is no reason that you need background data on like when you are sleeping turn it off but some say that's cheating but their idiots. That will dramatically improve your battery alone. Do the airplane shutdown every once in awhile some that's cosmetic but don't believe everything that is told to you. Only keep apps installed that you regularly use. Use spare parts to see if any app is causing significant drain. I'm a battery life guru.... ;-)
Sent from my SPH-D700 using XDA App

Significant battery drain in EF02 since using CPU Master

I previously had amazing battery life using AA i3. However, after installing CPU Master and setting it to ondemand I've been getting steady battery drain (much more than previously.) I've tried reflashing it along with other EF02 roms and still get the drain.
I'm not POSITIVE that they're related; the only other thing I did around the time I started having my battery drain was install Google+ but I doubt that it would cause drain to the extent that I'm experiencing now. How can I get back my amazing battery life?
PS. I've been using the EF10 modem the whole time; including when I had great battery life.

Never mind, it looks like I ended up with the EC05 modem somehow. Will I have to recalibrate my battery after flashing the EF02 modem and upgrading to EF10?

shadowlink217 said:
Never mind, it looks like I ended up with the EC05 modem somehow. Will I have to recalibrate my battery after flashing the EF02 modem and upgrading to EF10?
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No, but It won't hurt if your battery is fully charged...
Help support autism awareness,it only takes 2 seconds to help make a difference...
http://picketfenceblogs.com/vote/3616
Sent from MyEF02 using XDAPA...

I fully charge my phone everynight. I take it off the charger around 12 and it dies around 2? 3? COME ONE EF02/SPRINT/SAMSUNG!

Original Android <3ers! said:
I fully charge my phone everynight. I take it off the charger around 12 and it dies around 2? 3? COME ONE EF02/SPRINT/SAMSUNG!
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Click to collapse
You only get 2 or 3 hours on a full charge? There is definitely something wrong with your phone. I run Pandora over 3G for 5 hours with bluetooth headphones and I still have over 50%. What is your setup like?

I found that if you restore the Froyo voicemail on EF02 leak it eats the hell out of your battery. Mine got real hot too even after reboot and stopping the service. Had to remove it.

[Q] Crap battery life on srf 1.2

I'm not sure if I'm doing somthing wrong but I installed srf 1.2 with genocide kernel 2.0 and the battery life is just crap. I inplugged my phone and it was asleep for 5 hrs and it had 12 percent battery drain. When im actually using it, it dies fast. I've undervolted to -75uv on 1ghz have it set to conservative. At 100mhz its at -200, 400 -100. 600 -75, 800 -75. Am I doing something wrong?

You should ask this on the actual srf thread in development.
Two things you can do:
1. Battery Wipe. Search the forums on how to do this.
2. Give it a few days to recalibrate your battery to the new rom. My first 3-4 days on the SRF 1.2 and Genocide 2.0 were pretty pathetic. I got 6-8 hours of lite use. After the first few days of complete battery cycling (full charge to dead battery), I can get a full 16 or so hours of constant use. It's nothing great, but a lot better than stock.
If your phone doesn't sort itself out within a week of use, reflash the rom according to the instructions, doing a complete wipe of everything 3 times. The rom works great, you just have to give it time.

You can get an app called CPU Spy to verify that it is going into Deep Sleep and also Spare Parts and check the Partial Wake Lock to verify no rogue apps are running.

12% drain after 5 hours in deep sleep? Man...that doesn't sound bad to me at all. That's slightly over 2% an hour.
Agree with the guys about calibrating the battery though. Just remember, it will take a while for the battery to 're-learn' how to properly operate, so it will probably suck for the first few days or so.
I've read you should wipe battery stats each time flashing a kernel, but I don't believe I ever have.

arionfrost said:
You should ask this on the actual srf thread in development.
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Click to collapse
That user cannot post in the development forum with having just 1 post. So they are in the proper location for their question.

Oh thanks, I didn't know that. Also is not charging to 100% normal? It maxes out at 98%.

arionfrost said:
You should ask this on the actual srf thread in development.
Two things you can do:
1. Battery Wipe. Search the forums on how to do this.
2. Give it a few days to recalibrate your battery to the new rom. My first 3-4 days on the SRF 1.2 and Genocide 2.0 were pretty pathetic. I got 6-8 hours of lite use. After the first few days of complete battery cycling (full charge to dead battery), I can get a full 16 or so hours of constant use. It's nothing great, but a lot better than stock.
If your phone doesn't sort itself out within a week of use, reflash the rom according to the instructions, doing a complete wipe of everything 3 times. The rom works great, you just have to give it time.
Click to expand...
Click to collapse
I believe QBKing77 has a video on how to wipe the battery stats and calibrate; very helpful for those who haven't yet done it for themselves. (big shout out and thanks to QBK77 for the vids!)

Hispiforce said:
Oh thanks, I didn't know that. Also is not charging to 100% normal? It maxes out at 98%.
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Yes that is completely normal. It does this so the phone doesn't overcharge the battery, which would only harm it in the long run. (Or so I've read on here.)

hayzooos said:
12% drain after 5 hours in deep sleep? Man...that doesn't sound bad to me at all. That's slightly over 2% an hour.
FYI I idle tested my phone last night and with a good wifi and cell signal from my airrave after 12 hours my battery was at 93%
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vwags said:
hayzooos said:
12% drain after 5 hours in deep sleep? Man...that doesn't sound bad to me at all. That's slightly over 2% an hour.
FYI I idle tested my phone last night and with a good wifi and cell signal from my airrave after 12 hours my battery was at 93%
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Click to collapse
This is about what I see as well. I always check screen off battery drain by charging to full before I crash for the night. Of course I calibrate first and give the battery 2 days to get conditioned to the new setup. CPU Spy is a great app to monitor how your phone is using the battery like stated above.
Sent from my SPH-D700 using XDA Premium App
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Make sure all your apps have syncing turned off unless you start the app. You will find that a lot of things end up on at first for no reason.

The Root said:
Make sure all your apps have syncing turned off unless you start the app. You will find that a lot of things end up on at first for no reason.
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This. Especially facebook which seems to turn sync back on. Also pulse reader was a big one for me before I caught it. Besides that gmail should also be set to manual refresh only. Just use spare parts and look under network usage. These are the big ones. Also there are several apps for battery calibration. One more tip, remove those useless widgets! You don't really need them and they drain drain drain. with this set up I get a day and a few hours out of genocide and srf.
cd's or tapes?

A rant about my experience with the Verizon Galaxy Nexus. HELP!!

Let me start off with the good in this rant. This device is BEAUTIFUL and has A LOT of potential. Considering i just rooted it, it is even more fantastic BUT (there is always a "but" in life) here are my issues that i PRAY would go away. For some odd reason, though i have done everything i can to prevent it from happening, the battery life is just terrible! And here is the mind blowing part: My brightness is always at about 15-30 percent, my automatic sleep is at 15 seconds, i am never on 4G, NFC is off and my GPS is almost, always off. I recently learned that having a lot of black (Wallpaper, themes or simply a black display) going on prevents the display from eating up battery, therefore i've blackened what i use most (MMS, Gmail, Instagram and of course a black wallpaper) but after all of that, the battery still tends to suck major ball sack (sorry for the vivid image). If you must know i am using an AOKP rom, Jelly bean. I absolutely love the rom.
On behalf of that rant ^ .. Is there anything anyone could/would suggest i do in order to have a better experience with battery? Maybe a different rom that revolves around better battery life? Anything that i am missing to prevent battery from draining so fast? AM I THE ONLY ONE GOING THROUGH THIS?!
Last but not least, what gets me going and makes me want to punch something is the fact that my phone constantly, CONSTANTLY heats up for NO REASON (i'm assuming theres an actual reason but i have no idea what it is). After a full charge, i'd unplug the device and couple mins in after browsing web for like 60 seconds and texting, it'd start burning on the top of the screen and the back where the camera is. What is that all about?
And on behalf of that second rant ^ .. is there a solution for that? AM I THE ONLY ONE GOING THROUGH THIS?! lol
:crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying:
Check out what my battery looked like after a few mins from unplugging it. Screen, 67% ??????

Believe it or not... I had a battery go bad already on me. Now i was short charging it and stuff like that.. but still. The early builds weren't as efficient as this one is. You might try a new battery. Or the oem extended one. I have had good luck with both routes. Oh, and i'm stock.

Lots of battery drain and a hot phone means that it's trying to do something. Looking at your screenshot, you're not having any signal problems, which would lead me to believe it's a rogue app. What was your total screen on time during that 48 minutes?

Cilraaz said:
Lots of battery drain and a hot phone means that it's trying to do something. Looking at your screenshot, you're not having any signal problems, which would lead me to believe it's a rogue app. What was your total screen on time during that 48 minutes?
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Click to collapse
i honestly don't remember, i THINK it was probably 32 mins because thats what i see every time i see the battery that way. If that makes any sense.

Which kernel are you running with that rom? I had a JellyBean rom with a kernel that increased overall, but my phone would often heat up and battery life was not the best. Changed roms and kernel and everything is cool now.

jeremyt727 said:
i honestly don't remember, i THINK it was probably 32 mins because thats what i see every time i see the battery that way. If that makes any sense.
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32 minutes of screen on being 29% of your battery. That makes roughly 110 minutes of screen on for the entire battery. Running a stock battery? I never did, but I think people have said 2 hours screen on is the low end for a normal battery. I could be wrong, though.

LGeX said:
Which kernel are you running with that rom? I had a JellyBean rom with a kernel that increased overall, but my phone would often heat up and battery life was not the best. Changed roms and kernel and everything is cool now.
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Heres a screenshot of the info :

2 hrs is the low end for OEM battery? I'm lucky to get over an hour and a half on OEM extended. GNex battery is unbelievably horrid.

mursepaolo said:
2 hrs is the low end for OEM battery? I'm lucky to get over an hour and a half on OEM extended. GNex battery is unbelievably horrid.
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Or the high end. I got mine as a replacement device for the Droid Charge, so I had to order a battery and back cover when they offered it to me. Since VZW had a 50% off sale on the 2100mAh battery and back, I went with that. So I've literally never used the standard OEM battery with the phone.

Try going to this link: http://minooch.com/franciscofranco/Galaxy Nexus/JB/Jelly Bean/
and downloading "franco.Kernel-r225-384GPU.zip" flash it in recovery like you would a normal rom. Franco's kernel is extremely stable and works magic for good battery life. Should also resolve your overheating issue. If not, I'd suggest a full wipe and installing a different rom.

LGeX said:
Try going to this link: http://minooch.com/franciscofranco/Galaxy Nexus/JB/Jelly Bean/
and downloading "franco.Kernel-r225-384GPU.zip" flash it in recovery like you would a normal rom. Franco's kernel is extremely stable and works magic for good battery life. Should also resolve your overheating issue. If not, I'd suggest a full wipe and installing a different rom.
Click to expand...
Click to collapse
Terrific! So no need for a data/cache wipe? I can flash this over the current ROM I'm using? Backup I'll do of course but yeah.

jeremyt727 said:
Terrific! So no need for a data/cache wipe? I can flash this over the current ROM I'm using? Backup I'll do of course but yeah.
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Click to collapse
I normally wipe cache, not sure if it's required. But yeah, it's not a new rom or anything, just different kernel to test out and see if the kernel is what was causing your battery issues.

I'm using the jbsorcery beta with the lean kernel and under clocked with the modded voltage and this is heavy usage on Facebook and texting and about 30 min on the phone I have about 2hrs 45min and im at 80%
Sent from my Galaxy Nexus using xda premium