out of the box mine on a full charge lasted a few hours, now easily a full day
consider this -
Battery will depend on your usage profile, for an average user you will get at least a day
It is reallt depebding on stuff like screen brightness and how long you have the screen illuminated - what apps you are using - constant sync activity - GPS wifi BT, I know for a fact that GPS will drain your battery fast on any phone, couple that with the screen on during navigation sessions and it is a charger only situation
Don't forget you have a device with quadcore cpu and high end graphics some things are just not meant to run on battery - I have a game that I installed it is very graphic and cpu orientated - I'd say it pushes this system to the limit - I know the system is working hard because it gets hot and even with the charger plugged in it is still discharging the battery - yes this game would eventually cause a shutdown even when plugged into the mains lol
so you need to consider what you are doing and where - if you are using GPS etc then have it on a charger
I view these phones like my laptop as opposed to a phone - it has a battery but will be limited if you start pushing things
