Happy with my batterylife on this now with an extended battery! When i got it the stock battery, i think it was dreadful and i contacted the customer service but they refuse to resent me a new one. I have to order a new extra battery. My currently one from MPJ improved about 30-40%. I keep it running processes at minimum. I don't fill it up with uselsess apps that runs in the background.
I keep Bluetooth off all the time, and Wi-Fi on only when there is any avaliable. I keep the brightness at lowest possible and Sync off. I sync only when i need to sync.
And so far so good, the phone/battery is good enough for me and i have used this phone for 1 year.