[Q] Battery draining extremely fast. Any suggestions?

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This rom used to be fine, now it is draining extrememly fast and I don't know why.

I am on Gingerbread KF2 and really haven't done anything else yet. I used to be able to make it through an average day of ~15 or so hours using the phone only for some messages, a call or two, and a few minutes of music. After this type of usage, the battery would be around 70-80% at the lowest usually. This is even with the screen at FULL brightness all day.

About a week ago, it started draining super fast. The same usage runs the phone down to about 20-30%, which is ridiculous. In battery stats, Android OS is always FAR above everything else with like 60%. A couple battery calibrations did nothing. I don't use task killers, but I do check my running apps. OS monitor didn't help me at all, and checking my currently running apps just showed mostly system apps that should not be draining hardly any battery at all.

Any suggestions? I think that about covers it all. This just has me stumped...

go through your apps and see how often they check for updates. there were a lot of updates recently and some settings may have changed. If nothing changed, can you do a quick scan with look out? Just to be safe. Also, try juice defender and set it to aggressive

Sent from my SGH-T959V using XDA Premium App

Lookout didn't pick up anything and I set JuiceDefender to aggressive. Will JuiceDefender warn me of an app using excessive battery?

Nope, that battery is still dropping like crazy. (8% in half an hour from almost no use.)

Maybe I just need to reflash and start over fresh...

It will take a day out two to settle in. is your phone sleeping properly when the screen in off? Press the volume keys once it locks and if it makes the sound then it if still on.

Sent from my SGH-T959V using XDA Premium App

Originally Posted by jager555

It will take a day out two to settle in. is your phone sleeping properly when the screen in off? Press the volume keys once it locks and if it makes the sound then it if still on.

Sent from my SGH-T959V using XDA Premium App

Sleeping just fine.

Yea, I guess if you can't figure it out, you can reflash. That is a pain though. I would say to try out jd for a while longer and see if you get results. fb us usually the culprit for my battery drains, but if you checked all of your apps and changed them to manual, then there isn't much more you can do.try putting your screen to auto brightness

Sent from my SGH-T959V using XDA Premium App

So either juice defender is helping or ADW launcher was using excesive battery. It is working better today after I switched back to launcher pro, but still going down pretty fast.

Sent from my SGH-T959V using XDA App

ADW doesn't really drain much battery for me. It actually uses less RAM compared to LauncherPro and Go Launcher (for me).

I think you should just try reflashing your ROM, maybe flashing the new GB ROMs too.

Also, are you sure you're doing the battery calibrations properly? That might also be an issue.

Maybe it's not your phone or ROM...

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I've had several ROMs in the last few weeks and have noticed this behavior on many of them....after searching, I found this.

T-Mobile has apparently noticed some abnormal battery issues in areas with their "4G" HSPA+. They're asking people in their support forum for a bit of info to help them find the issue.

support[dot]t-mobile[dot]com /thread/3544

The problem was initially believed to be affecting the G2 only, but is now believed to be affecting all phones in their "4G" footprint that started when they updated their towers in late July. The update provides the government an emergency channel to use, but it appears that it may be causing network issues.