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Didn't help my crap battery life one bit but YMMV. I may use this awful battery life as an excuse to get a dent free phone :) That's how mad I am!
 
My battery is the same as it was on 4.2.1

Wish mine was. Same settings, same apps but from 4.2.1 to 4.3.1 my battery is worse.

While I sleep and my iPhone is in standby the battery (on 4.2.1) gone from 100% to 95%, now it goes to 82%, the same 7-8-9 hours of standby. I'm recharging it daily now.

That's not a major problem, but in fact the battery is worse.
 
Wish mine was. Same settings, same apps but from 4.2.1 to 4.3.1 my battery is worse.

While I sleep and my iPhone is in standby the battery (on 4.2.1) gone from 100% to 95%, now it goes to 82%, the same 7-8-9 hours of standby. I'm recharging it daily now.

That's not a major problem, but in fact the battery is worse.

Same for me but even worse. Case in point - left work yesterday with 100% charge. Played Tiny Wings for 45 minutes, replied to 2 emails, and talked on the phone for 1 hour. Woke up this morning (13 hours after charge to 100%) with 32% battery left. That is ATROCIOUS! Previously I would have had probably 70%

I have had so many problems with iPhone 4 replacements (this is my 5th!) that the last time Apple sent me a brand new retail one straight from the factory. I don't know if I want to get into the replacement game again because otherwise the phone is perfect :(
 
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