Develop Bugs

Battery jumping

Good day everyone, I've been using CM9 for awhile now and its been an awesome ride so far. Everythings been working almost perfectly. Recently, my batteries(stock one) percentage level's been Jumping up and down...a lot. For instance, I woke up to it (while off) having 100% on the indicator, turned it on, and it dropped to 51%, re-booted it to see if that'd help but it dropped again to 12%. This kindof things been happening for awhile and still with Alpha 2. Should I just get a replacement from sprint? Or is there a workaround.
Also, Music's apparently been taking up to as much as 40% of my battery usage even though If don't even have it activated at the moment. I've tried deleting the apk but it appears com.android..., I may just be being a noob, but any help?
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Sent from my SPH-D700 using xda premium

Jump" is typical when you don't power off completely and then power back on no work around other than turn it off leave the battery out for like 3 or 4 minutes and power it back up
Sent From My SPH-D700 Running Android 4.0 :sly:

Try an app called bloat freezer or paid version of Titanium Backup and freeze music.
Sent from my SPH-D700 using XDA App

Have you tried calibrating ur battery? Give that a try and see if that doesn't stop it completely.
Sent from my O.G. SuperCyan using XDA Premium....

CASHVILLEBOS said:
Have you tried calibrating ur battery? Give that a try and see if that doesn't stop it completely.
Sent from my O.G. SuperCyan using XDA Premium....
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Apparently calibrating the battery according to some Android Engineer does nothing. The percentage you have left is directly related to the voltage of the battery. So if you are at 3.95 volts, that roughly corresponds to 50% with a range of 3.7 to 4.2 Volts on the battery. What the OP saw is the bbb...battery boot bug. If you are rebooting and you are lower than 70% do it while plugged into something. If it does happen as Biggie stated, simply remove the battery for a couple of minutes and reboot. It is a false report to the phone.

This has almost always been a issue for me when I flash anything new. It stays that way for until I deplete the battery, connect and leave connected til 100%, deplete the battery and follow the same process for about 3 full cycles and then all is well! Leaving battery out for a breather sometimes helps but I installed an app that has a widget and it keeps the regulating kinda monitered so I can be a little more at ease. Will post directly after this. But I also noticed that there have been times when the readout was a very low battery red [but I knew couldn't be true] and after I put it in airplane mode and didn't bother it for 5-10 minutes when I looked back again, battery would be yellow almost back to showing good and my battery stats show the levels increased. I think cm9 can't handle too much at one time anyways
Edit: that app I think is called battery info. Its pretty simple =) hope it helps! L8rz
Edit2: that app is listed in market as battery widget not battery info
Sent from justlovejoy's Epic 4g powered by The GreenRomProject.com & SpinBackEntertainment.com
Let's Go NYG!!!! 2012 beitchz!

Battery Drains when not in use/sleep

Am I in need a new battery? Which ever ROM I use this happens.

Need a little bit more information then that in order to help
Sent from my R800x using XDA

Left the phone idle after I pulled the charger. Came back and it's already below 90% (87) I haven't used any apps,as you see only the usual stuff show up.
droidjunkie said:
Need a little bit more information then that in order to help
Sent from my R800x using XDA
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Researched a bit and heard cell standby could be the issue,are mine normal? Can't tell.

How long was it off the charger for? Also I would be more worried about wifi, if your actually using wifi then yeah leave it turned on but if you're letting the phone just sit there I would try turning it off but I don't user wifi so I'm not sure. You can also try turning the brightness settings down.other then that it looks normal to me.
Sent from my R800x using XDA

Brightness is always below 50%,I keep around 25%.
So 2 hours off the charger,wifi on and idle,87% is normal? Everytime I turn it on just to check the battery it drops 2%, I don't think that's normal.

Honestly that's probably normal if you were away for an hour or so or if you left wifi on. Battery life also depends on which kernel you're using as well.

Solar.Plexus said:
Honestly that's probably normal if you were away for an hour or so or if you left wifi on. Battery life also depends on which kernel you're using as well.
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I'm using DooMKernel v14

Installed Juice Defender, did some tests and just after I unplug, it took a while to go down to 99% took 10 minutes while watching YouTube on 3G but as it got down to 95 % the battery just drains quickly , went to 85% in 5 minutes while browsing the web
Sent from my R800i using Tapatalk 2

i noticed the same thing
i lost my old charger so i bought a new one and thats when i first started having this issue.
phone would seem to charge faster than before but died faster as well when using this charger. (this was my work charger). at home i use laptop to charge and takes longer but lasts longer.
also noticed phone got warmer when charging at work. so i returned that charger and got a different one and problem solved.
so if your using a different charger recently a new one may help

WiFi seems the culprit. Maybe Google how to set the wifi scanning interval
Sent from my Xperia Play using Tapatalk 2

I'll try a different charger. The phone does get hot when plugged in.

Better Battery stats.
I'll bet one of your apps (a wifi app) isnt sleeping, and thats why you are losing the battery.

How is everyone finding the battery life on CM10?

I would have asked this in the thread, but I'm new so can't make posts there. Anyways, for me it's pretty terrible.
It's been 9 hours and 51 minutes off charge and my batter is at 40%. The screen on time is 34 minutes and set to autobright. Anyone else getting anything this bad?

melted_cow said:
I would have asked this in the thread, but I'm new so can't make posts there. Anyways, for me it's pretty terrible.
It's been 9 hours and 51 minutes off charge and my batter is at 40%. The screen on time is 34 minutes and set to autobright. Anyone else getting anything this bad?
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How long have you been using this ROM for ? It usually takes at LEAST 2-3 days of use before battery stats improve. That goes for every new ROM you install.

The battery in cm10 is great I'm seeing 1% per hour in standby just run a few cycles it will calm
Sent from my HTC One X using xda premium

I've been using p12v2 the day it came out, but I've been using the ROM since p5. Should I just run it through a few full cycles then?

melted_cow said:
I've been using p12v2 the day it came out, but I've been using the ROM since p5. Should I just run it through a few full cycles then?
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Have a look at cpuspy on the market check that your going into deep sleep what %
Sent from my HTC One X using xda premium

whynot66 said:
Have a look at cpuspy on the market check that your going into deep sleep what %
Sent from my HTC One X using xda premium
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Ah, I forgot I installed that. Deep sleep is at 58%

I recently had quite good battery life on eprj cmx(10). I got about 3.5h screen-on time, and in total a time of 6.5h. Look at my quote below(yip I just did quote myself).
timlambo said:
Here are some battery stats for the concerned.
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I did actually use the phone as you can see. This is just very normal usage. Browsing, xda and flipboard mostly. Also running on the oc version and lowest screen brightness(which is still quite bright).
Sent from my HTC One X using xda premium
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[Q] Battery !!

this my HOX Battery screenshot, is it good enough ?
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Aimen7 said:
this my HOX Battery screenshot, is it good enough ?
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yeah it is

Can you show us your Screen-On-Time?

compe said:
Can you show us your Screen-On-Time?
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well, it should result 9Hrs 3mins

it is the​CyanogenMod 10

Screen time?

faiz02 said:
Screen time?
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wrote that above....

matt95 said:
well, it should result 9Hrs 3mins
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Unfortunately it won't be that much. Maybe someone can explain how it gets measured. Look at mine for example.
Sent from my HTC One X using xda app-developers app

matt95 said:
well, it should result 9Hrs 3mins
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You wish, I wish, we all wish..

eyosen said:
You wish, I wish, we all wish..
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Most people get from 2-3 hours screen time and around 18 hours battery.
Sent from my HTC One X using xda app-developers app

How are you all getting so much battery life out of it?
Mine doesn't even last a day, with like 1 hour screen time.
Any tip appreciated, thanks.

Im also losing battery fast...even when im not using it, kept it in deep sleep, it still losing battery about 1% in 5 minute...is any kernel that good with battery life...there is something that eating the power...

me too is losing the battery fast, even after updated to ARHD 17.1 (JB), it sucks a lot where it could drop to 40% within four hours and minimal screen on usage. Really make me wonder if it is hardware problem because have flashed different ROM but still yield the same result.

hit it with a thunder...that should do the trick

I think the best battery life Rom it is venom viperx...after 24 hours with 3 g and data on I have 2%...the screen was on 2h13 m with auto brightness and calls 1h55m...some mails,facebook,xda...I think i'm not gonna try jb...this rom it's perfect and verry customizable:thumbup::beer:
Sent from my HTC One X using xda premium

I also had major problems with battery life on my HOX. My solution so far is to dissable synchronization of Google Contacts, This gives me a gain of at least 50% generally.
I've attempted to dissable services one by one, and Contacts appears to be the culprit.
Try this and let us know..
Edit:
Im on stock JB european rom

Been watching a movie on MXplayer and battery is down to 68% from 100%, screen on time is 1 hour 50 minutes. Which suggests that I can watch movies for 4 hours+.
Don't have the screenshots to prove it now that i've started charging my phone.
Oh yeah, matt95 measured it by the screen using 45% out of those hours, which equals 9.3 hours. Doubt that it's right though.

[Q] Battery problem on Kitkat

Hello there.
Since i update my Galaxy tab 3 to kitkat my battery drains very very fast!
Some times it goes of 100% to 5% in less than a hour!
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Can someone help me please?
I have already clean the cache partition.. I don't no what to do... :|

Hi
first you should charge your device to 100% then work to device off normally.
Now full charge! this can help you , if it can't help ,you can install a battery calibration app.
Btw KITKAT consume battery so much more than JB, it's naturally.

ChUk07 said:
Hello there.
Since i update my Galaxy tab 3 to kitkat my battery drains very very fast!
Some times it goes of 100% to 5% in less than a hour!
Can someone help me please?
I have already clean the cache partition.. I don't no what to do... :|
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You could try calibrating it with this app.
https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=en
Let us know how the Napster seeds get squished into the monkey marrow. =-}

I have the same issue but not that hectic as yours, mine takes forever to charge, like more than 10 hours but it drains quickly, probably half the time it charges and while using it laying down while. It's charging it doesn't go up, rather the battery gets drained and this is while I'm charging it. I'm using nolekat v1.5 and for the moment now I will wait till I get to 100% battery then I will calibrate it. Will let you know how it worked out.
Sent from my SM-T210 using XDA Free mobile app

Unfortunately the battery calibration didn't work for me so it's either I reflash my rom and do a clean wipe again or manually remove my battery for 5mins and put it back on.
Sent from my SM-T210 using XDA Free mobile app

steelbrachen said:
Unfortunately the battery calibration didn't work for me so it's either I reflash my rom and do a clean wipe again or manually remove my battery for 5mins and put it back on.
Sent from my SM-T210 using XDA Free mobile app
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I'm curious. Did it work?

I'm sorry I'm debating whether to do it still cause I don't wanna install all my stuff all over again and do the process but the calibration definitely didn't help. If I ever do it I'll let you know but for the moment I won't yet.
Sent from my SM-T210 using XDA Free mobile app