Develop Bugs

Extra Battery Drain?

Well, I jumped the gun and am using Adrenlyn's "Second Wave" Froyo rom. Also, I threw in the 2.15 radio update, so I should be all caught up. HOWEVER, I noticed my battery has been...eh, at best.
Then I thought, "could it be the new toolbar I installed." I added the Stock Sense UI bar with Battery %'s added in (white.) Do you think this could be hampering my battery life, or do you think it's more a psychological thing, since I can now see exactly how much battery is left?

frishmans92 said:
Well, I jumped the gun and am using Adrenlyn's "Second Wave" Froyo rom. Also, I threw in the 2.15 radio update, so I should be all caught up. HOWEVER, I noticed my battery has been...eh, at best.
Then I thought, "could it be the new toolbar I installed." I added the Stock Sense UI bar with Battery %'s added in (white.) Do you think this could be hampering my battery life, or do you think it's more a psychological thing, since I can now see exactly how much battery is left?
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Click to collapse
not trying to be rude man but the reason why your not gonna get an answer is because this belongs in general section. follow the rules of the forum and people will help you.

bluewave53 said:
not trying to be rude man but the reason why your not gonna get an answer is because this belongs in general section. follow the rules of the forum and people will help you.
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This.
That said, I'm assuming you did a complete wipe of Cache and Data when you installed the new ROM. If so, this erased the battery stats. If you didn't have the phone at 100% charge when you did this, your battery life will suffer. Steps to fix it:
1. You will need to charge the phone to 100% (while the phone is off).
2. Leave charging cable plugged in.
3. Boot into recovery and wipe the battery stats (should be under Advanced).
4. Then boot into Android.
5. Then remove the charging cable.
Your phone will have abnormally good battery life during the first discharge, but after you charge it again it'll be back to normal.
Pretty sure this info is searchable (I have typed it out at least 3 times myself)... maybe it should be added to the Wiki.

larsrya8 said:
This.
That said, I'm assuming you did a complete wipe of Cache and Data when you installed the new ROM. If so, this erased the battery stats. If you didn't have the phone at 100% charge when you did this, your battery life will suffer. Steps to fix it:
1. You will need to charge the phone to 100% (while the phone is off).
2. Leave charging cable plugged in.
3. Boot into recovery and wipe the battery stats (should be under Advanced).
4. Then boot into Android.
5. Then remove the charging cable.
Your phone will have abnormally good battery life during the first discharge, but after you charge it again it'll be back to normal.
Pretty sure this info is searchable (I have typed it out at least 3 times myself)... maybe it should be added to the Wiki.
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Click to collapse
Well, you helped more than one person. Thanks, going to try it right now. Now just wait to wait patiently for 3 days for the battery to charge to full...
God, I hope the official 2.2 OTA fixes the battery life/charging time.

to be honest, my battery has been ****ty after radio update.

has anybody does a comparison of cell standby percentages from before/after the 2.15 radio?

I just did the Battery wipe
Well in the 5 minutes I have had my phone back on I am already down to 96%
I am using Sky Raider 2.5.2 Stock with the UnRevoked-Forever and Radio 2.15
I am not seeing much if any difference in battery life...
I can plug in as needed when in my home office, but on the road a whole other ballgame.
I have 2 spare batteries HTC EVO 4G 1800mAh, Can't afford not to be connected...

Throw hydras stock undervolted kernal in. I can go a good day and a half on a full charge with the 2.15 radio installed
Sent from somewhere

Which Kernel
lgldrgdlr said:
Throw hydras stock undervolted kernal in. I can go a good day and a half on a full charge with the 2.15 radio installed
Sent from somewhere
Click to expand...
Click to collapse
1.115 or 1.113 OC/UV

http://www.hydrakernel.net/stock_speed_undervolted_kernels.htm
Sent from somewhere

larsrya8 said:
This.
That said, I'm assuming you did a complete wipe of Cache and Data when you installed the new ROM. If so, this erased the battery stats. If you didn't have the phone at 100% charge when you did this, your battery life will suffer. Steps to fix it:
1. You will need to charge the phone to 100% (while the phone is off).
2. Leave charging cable plugged in.
3. Boot into recovery and wipe the battery stats (should be under Advanced).
4. Then boot into Android.
5. Then remove the charging cable.
Your phone will have abnormally good battery life during the first discharge, but after you charge it again it'll be back to normal.
Pretty sure this info is searchable (I have typed it out at least 3 times myself)... maybe it should be added to the Wiki.
Click to expand...
Click to collapse
Right on, sorry about that yall. :/
And indeed, my phone was NOT fully charged to 100%, so I'll do the steps to fix it, and eventually report back. I do have the Hydra-Stock UV Kernal installed already.

[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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Click to collapse
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?

[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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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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Click to collapse
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?

[Q]Severe Battery Issue

I need to figure out exactly what's causing this battery drain. At 7PM my battery was at 100% after installing a new radio+kernel combo. I also calibrated my battery using a method I read in the Calkulin thread for his ROM. The method was as follows: After installing a new radio, rom or kernel charge the battery to 100% then physically take the battery out for 3 minutes. Boot into recovery then wipe the battery stats and dalvik cache 3 times each. Boot into Android then charge to 100%. Download a battery calibration tool use that and discharge. Anyway, I did all of this and was done by 7PM. After light use...listening to a few songs via google music...did a search using 3g...nothing too heavy. By 8:23 my battery was down to 76%. I thought this was pretty abnormal so I downloaded some extra battery tools and app watcher tools to see exactly was draining me so bad. Over the course of about 1:30 hours my battery dropped from 76% to 46%. I froze some non essential apps after checking up on them with watchdog (social hub, yahoo finance, tts service and accuweather). Decided to do a restart to see if that would help and my battery read 17%. I just noticed that it went up to 18% and it's holding steady but this is really weird...I honestly don't know what's going on and I could really use some assistance with this issue.
I forgot to post stats for the past few hours. Before I started the battery drain quest the Battery Monitor Widget said that the estimated was around -280mA. Over the course of a few hours it ranged from that to well over -600mA. After the restart it dropped to like -2mA but now it's back up in between the -400mA to -700mA range. It's slowly dropping as I type but there's no way that this is normal.

Sometimes when doing reboots messes up the battery reading. Its done that to me before. I have noticed that on ics when I flash a kernel and modem it takes me like a full day to get good battery. After I flash it my battery is pretty bad. Search for an appstore called bettery battery stats. Its on here at xda somewhere. Use that to see if your phone is sleeping properly or if an app is wakelocking your phone. Also it depends on who u ask but wiping battery stats does absoutley nothing for me. Its been said before that it doesn't work. Hope u get it straightened out.
Sent from my SPH-D710 using xda premium

thanks for the response. I've downloaded the battery stat app but I need to read up more on it to find out what the program is telling me. In your opinion what is good battery drain? I was on facebook for a second and it skyrocketed to high -600's but now it's down to about -90mA and dropping by just sitting in front of me.

musclehead84 said:
Sometimes when doing reboots messes up the battery reading. Its done that to me before. I have noticed that on ics when I flash a kernel and modem it takes me like a full day to get good battery. After I flash it my battery is pretty bad. Search for an appstore called bettery battery stats. Its on here at xda somewhere. Use that to see if your phone is sleeping properly or if an app is wakelocking your phone. Also it depends on who u ask but wiping battery stats does absoutley nothing for me. Its been said before that it doesn't work. Hope u get it straightened out.
Sent from my SPH-D710 using xda premium
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Click to collapse
Clearing battery stats does work to wipe any info the os has on the battery. Just check your battery graph in settings, boot to cwm, wipe battery stats, then look at that graph again.
I know you know your fair share of info, so no disrespect man...
Sent from a phone with kNOw CiQ kOnane...

TeamERA said:
Clearing battery stats does work to wipe any info the os has on the battery. Jus check your battery graph in settings, boot to cwm, wipe battery stats, then look at that graph again.
I know you know your fair share of info, so no disrespect man...
Sent from a phone with kNOw CiQ kOnane...
Click to expand...
Click to collapse
I think he meant wiping does nothing to actually effect the life of the battery... Which, I agree. I've never seen any benefits when I've done it on my ET our my Moment.
Wiping just resets the OS's experience with the battery. Using your phone normally for 24 hours had the exact same effect.
Sent from my SPH-D710 using XDA

things were looking up as far as battery life goes. i got rid of some programs that were hogging the cpu and i was almost to around 12 hours on a single charge with light use. however, i did a reboot at around 6pm and my battery read 45% before hand. after the reboot it read 10%. do you think it has something to do with the kernel? this is the second time a reboot has jacked up my battery.

Guys
I have been having the same problem and try lots of things but what I did not try and just found out is that my phone has a 1500mHa instead off a 1800mHa Sprint store made a mistake and placed the wrong battery inside my phone.
Maybe some of the problems you guys are having is due to that fact.
Besides opening the phone there are several app that will actually tell you which battery you have I.E. Battery Monitor

[Q] HTC G2 Wrong Battery % Reading after custom rom flash

i recently flashed an ics rom to my htc g2, after flashing it all worked perfect but the phone was reading the battery incorrectly.
do any of you have the same problem? if so do u know of a way to fix this??

wipes battery stats in recovery, charge fully (let is sit overnight to be safe) wipe battery stats again in am. let it drain to around 15% let it charge full (again overnight if possible) then see if you good, i have ocd so id probably wipe stats again just for safe measure.
if this wont help more info will be needed to trouble shot your problem

demkantor said:
wipes battery stats in recovery, charge fully (let is sit overnight to be safe) wipe battery stats again in am. let it drain to around 15% let it charge full (again overnight if possible) then see if you good, i have ocd so id probably wipe stats again just for safe measure.
if this wont help more info will be needed to trouble shot your problem
Click to expand...
Click to collapse
thanks for the reply.. im doing what u said now. will post tomorrow to let u know what happend okay.

demkantor said:
wipes battery stats in recovery, charge fully (let is sit overnight to be safe) wipe battery stats again in am. let it drain to around 15% let it charge full (again overnight if possible) then see if you good, i have ocd so id probably wipe stats again just for safe measure.
if this wont help more info will be needed to trouble shot your problem
Click to expand...
Click to collapse
As far as I know, battery stats are wiped every time you unplug from power with a full charge.
Also, battery stats have nothing to do with the battery % indicator.
Please read this and this.

shared_ptr said:
As far as I know, battery stats are wiped every time you unplug from power with a full charge.
Also, battery stats have nothing to do with the battery % indicator.
Please read this and this.
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Click to collapse
yes I've read similar articles to those before, thing is I don't belive it wil give you more battery life, that's just silly. for the occasional time my battery indicator has been off, and rebooting alone doesn't work, wiping the bat stats does. now maybe this has just been a coincidence but it has never failed me. if it happens again ill just plug and unplug my phone to see if it helps... or ill just stick with wiping the stats and won't complain if it doesn't work
Sent from my HTC Vision using xda premium

hey guys... ive done the battery status wipe but no luck my phone reads the wrong battery percentage. idk what to do now. last thing im thinking is reverting back to stock froyo, were battery stats were being read correctly. also i found a gb rom called PantsRom, its based on the stock gb update for the HTC Vision, with all bloat gone and rooted with stock Vision kernel. im going to try that rom out today after i get off of school and see what happens. will post back then. again THANKS SO MUCH FOR THE ADVICE AND THE HELP!

just flashed PantsRom (Android 2.3.3) left stock with all bloat removed. (no overclock) will post back to c if battery is correct. Hopefully itll be okay :good:

battery still wont read correctly. last thing i have left to do is to go all the wayy back to froyo and loose root.. well c what happens then
EDIT - Even after reverting VERYTHING back to stop the battery did not seem to be reading correctly... UUGGHHH!!! PLEASE HELP!

Have u tried running the battery down to nothing?
Run till the phone simply wont stay on and try to charge it to full from there (like over night)
then maybe wipe battery stats again
however i do believe battery stats are wiped every time a full charged is achieved like mentioned above.

bob232149 said:
Have u tried running the battery down to nothing?
Run till the phone simply wont stay on and try to charge it to full from there (like over night)
then maybe wipe battery stats again
however i do believe battery stats are wiped every time a full charged is achieved like mentioned above.
Click to expand...
Click to collapse
done that several times.. right now im running the phone with the wrong battery % STILL hahahaha, i jst carry my charger everywhere just incase.. FML ik ik, have any of you got any diff suggestion, or gone through the same problem im going through? if so, have yall found a fix for it.. i have searched all over the net..