Battery life suddenly sucks?

i have tried restoring phone no better...

used able go day , still have battery having charge 3-4pm used go day until 9-10pm no problem

average usage seems same...

ip4s on at&t ios 5.0.1

suggestions??

 

my gf , have been having strange battery problems.

see thread , see if can of tests i've done see if same results.

http://forums.macrumors.com/showthread.php?t=1332398

 

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