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the Apple store can check your battery stats via a test they have. They link to your phone in the store. I did this with my iPhone 4.

Just a few BIG variables include:
How much music do you listen to? Music has very low drain, so the usage is high and battery change in minimal.

How strong is your signal? Weak signal strength means higher battery drain.

And, of course, the ones mentioned like GPS/location, screen brightness, etc.

I never have had the high numbers you see on the forums unless I use it as in iPod or something. I spend a lot of time on safari, and typically get 5-7 hours of use.

On mine, there is probably an hour or so music listening, there is a lot of email and text and phone calls. A small amount of Safari (but that's what my iPad is for). I manually control brightness and keep it comfortable but not overly bright.

GPS/location is restricted to core apps, most third party apps don't need it to work.
 
So the issue was a ********* of old JB files (some from iPhone 3G) lingering in the memory, taking up "2.8GB Other".

Restored phone and began it as a new phone...

iCloud still pushes all your old contacts, calendars, messages, etc without restoring from the iCloud backup... honestly I'm so smitten with iCloud.

Anyway, I've gotten 96% out of 40 minutes of usage - Much more acceptable! Thank you VERY much Kevin, avoided a much needless call to Apple/possible replacement which would have done the exact same thing as I would have just restored it from the same JB'd backup. Cheers all.
 
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This is my battery life stats
Is this normal?
The battery is degrading so fast isnt it?
Gives 10 hours of standby and 4 hours of usage
 

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