Help with sudden battery drain please


Evening all!

I've had a Galaxy Note for a little over a month now and love it. However over the last three days I've noticed a significant drop in battery performance and I cant figure out why...

Previously when not being used it would lose a few % p/hour. Now its easily losing 10%+ an hour and the phone is constantly warm (pointing to constant CPU usage?).

I think I've tried the basics, turning phone off, killing all tasks, uninstalling recently installed apps, scanned for viruses, turned wifi and data off and ensured bluetooth isnt on... All to no avail!

If someone with a bit more knowledge could give me some more suggestions Id be very grateful!

And a merry christmas to you all :)


Extreme Android User
I’ll probably get spanked for saying this, but have you tried something like JuiceDefender? It seems to help my Optimus S behave, although I could probably do it all myself... even (gulp) paid two bucks for the Plus version.


Extreme Android User
my guess..your area is experiencing tower service issues...
how is your data speeds or call quality or dropped calls?
if the towers are under maintenance or down.. or you are in an area that kills the signals,
so that you have weak signals.. your phone will constantly looking for better signal. it is equivalent to making a short phone calls all the time. which will keep the cpu warm..

or you have a bad app that will not let your phone sleep...

or you have a bad hardware... and needs to be warranted.


Android Expert
Why would you get spanked for recommending Juice Defender? It's a legitimate app.

Personally, I prefer Tasker, since I can set it to turn data off two minutes after the screen goes off instead of immediately when the screen turns off.


Android Expert
Of course you can turn it off and on yourself. Apps are for convenience. Do these people also prefer to do hand calculations themselves instead of using a calculator or a spreadsheet?