5
votes
3answers
445 views

What kind of power saving smarts does Android already have?

I just d/l tasker and it's been really interesting (although not as interesting as I would've liked since I feel a lot of the good features require a root). I would like to optimize my Galaxy s3 so ...
1
vote
1answer
199 views

Battery usage for keeping apps open

How much of an effect does it have on the phones battery life to keep applications such as the contacts application open. I ask because that app sometimes takes long to open the first time depending ...
0
votes
3answers
3k views

Battery drain on Galaxy Note-I after updating to Jelly Bean

I have Galaxy Note-I (N7000), and upgraded to Jelly Bean 4.1 today. The battery drains fast. Do we expect any update from Samsung on the battery drain issue, or do I need to downgrade to ICS?
7
votes
5answers
7k views

Serious battery drain (Screen, Android OS) after JB upgrade

Since I upgraded my Samsung Galaxy SII from Android 4.0.4 (ICS) to 4.1.2 (JB), my battery life has decreased dramtically. Running ICS I could easily have ~25% battery left when going to bed, after ...
1
vote
2answers
838 views

“Restrict Background data” with Jelly Bean on tf300t ASUS tablet

On my tf300t ASUS tablet (with wifi only) I tried to set "Restrict Background Data" following Settings->Data Usage->three boxes in the upper right corner, but there is no such option. I read on ...
4
votes
3answers
243 views

How do I determine which process woke up the screen?

The screen woke up at 4am or 5am at night, and had been on ever since. How can I find out the process that was responsible for screen-wake ups? The device is Galaxy S III running Android Jellybean ...
3
votes
0answers
541 views

MS Exchange with Default Email App is Randomly Draining Battery!

I'm using my Exchange email account for work with the default Email app on my Nexus S running Jellybean... usually everything works just fine, but within a week or so it'll start consuming massive ...
1
vote
1answer
2k views

msm_otg kernel wakelock preventing deep sleep

Ever since upgrading my stock Sprint Galaxy S3 to the official Jelly Bean release, my phone won't go in deep sleep at all, it's constantly at 384MHz. It's because of msm_otg kernel wakelock. Anyone ...
2
votes
1answer
264 views

Is there a reason Google Reader drains this much battery?

It doesn't strike me as normal that Google Reader should drain more battery than even my screen. Is this a known bug, or is it a settings issue? I'm using 4.1.1