Originally Posted by karanrajkapur
With packet data ON, that's how efficiently the battery lives. I hope you guys calibrate the battery after a new flash. ( Y)
Sent from my Xperia Neo V using XDA Premium 4 mobile app
I always have my packet data on and for about a year I never went over 10%/hour while browsing net outside of WiFi range.
In my case I narrowed the problem down basically to "screen on" state. Suddenly it multiplied power consumption even with packet data and GSM off (level of brightness doesn't matter, simply being on did this).
It persisted through ROM changes (reverting back to stock, different ICS, GB and JB ROMs). I'm not alone in this, as I found dozens of similar cases all over the net, but no solution. Some suggest hardware malfunction, like motherboard short-circuiting.