How long should an iphone 3G battery go between recharges?

Question

If I forget to keep my phone plugged in at nite at 10pm it will be at 100 percent power and by the time I check it at 8am when I awake, it's at less than 10percent. Is this normal? Nothing was being used, the phone was simply in ready mode overnite and it loses 90% of it's charge? Do I have a faulty battery here?

Answer 1

perhaps. take it to at&t they"re good with cs

Answer 2

Depends what your settings are at.

If you are using:

WiFi:  On

Fetch New Data->Push: On

Brightness->Max

Bluetooth: On

AutoLock:  Never

I wouldn't expect you iPhone to make it through the night.

1.  Turn 3G and WiFi off if not in use ( as they are the biggest battery killers )

2.  Turn brightness to middle ( auto off )

3.  Fetch Data-> Manually or Hourly

4.  Autolock-> 1 minute

And your battery should last several days if not used to watch movies, listen to music or surf the internet.

Good luck.