battery n charging problem

Prob 1 : Battery can't charge properly
Prob 2 : Battery drains fassst

Searched around and seems this is a big problem with iphone 3.0 software (i think). A lot of forums, a lot of tech sites ...seemssss to point the problem to a few possible causes like :

• internet tethering
• push functions
• mail background services
• iphone self mechanism to stop charging once unit becomes warm/hot

etc etc

What I did (so far so good)

• Hard reset (hold power + home button till off screen comes on, blank screen and release fingers after apple logo comes out)
• switch off internet tethering (Settings/General/Network/Internet Tethering) *sometimes will not appear if not connected to pc
• switch off all push functions

What did the trick (so far so good)

• deleted my gmail account

Summary :

it was ok when i got the phone. maybe lasted the day till evening and played with functions apps etc. After installing apps, setting gmail etc, the battery life became....bad. It was like going back to the 80's...tried fully discharge (till battery became red color etc) and switching off to recharge etc. Fully charged battery didn't last even 1 hour of idling!

Now seems ok after i did the above, maybe u can give it a try (instead of fiddling with those SSBsettings, OpenSSH, reinstalling firmware solutions)