iPhone Generation : 3Gs
Unlocked? (or Part Number): Maxis set
Current Firmware : 3.1.2 (7D11)
Current network: Hotlink
iTunes Version : 9.0.2.25
PC/MAC : PC
Jailbreaking software : No
Problem Encountered : Battery drains off really fast
Steps Taken So Far : Restored as New Phone
I got my 3Gs iPhone since launch by Maxis. For the past week, battery seems to be depleting faster than normal. I jot down the percentage and its 3 to 4% every 5 minutes using 3G to surf.
I then Restored as New Phone and it got even worse. Now after charging it to 100%, it can go down to 90% even without using it. I am going to restore it again now see what happens.
Yes I have off Push, Fetch, Bluetooth. My Wifi and 3G always on. I had no problems with this setup previously.
If after restoring it again and still the same, Im going to take it back to Maxis for warranty. Wonder if anyone has any experience with this? Do they exchange 1 to 1 or leave the set there for a few days? Do I bring the whole box and contents along with me?

i'd the same problem like yours previously when im on fw 3.0. but right after i pwn it to 3.1.2 everything went just fine. i suggest you try the fw3.1 instead of 3.1.2 see whether it helps or not...
edit : btw, i noticed that mine doesnt has the DiGi carrier logo when comparing with others they have Maxis or Celcom. why is tat?