Hardware PSP Go battery life?

[nl255]

I am thinking of getting a PSP Go, and I have a couple of questions to be sure I get one that is decent. First, how is the battery life on the PSP Go, assuming it is brand new (or nearly new)? Specifically, for both games and movies at maximum brightness with no wifi or bluetooth. Something like "it lasts about X hours from a full charge if you just watch movies continuously until the battery dies but only Y hours if you play a game continuously until the battery dies". Also, how large is the internal memory on a new (or nearly new) system. Specifically, the total disk space (in KB) that chkdsk says.