The lithium-ion battery offers a play time of 4 to 7 hours for games, 3 to 5 hours for movies, and approx 10 hours for music. In order to get at least 6 hours for gaming, and 5 hours for movies, you will need to be using headphones with the volume turned down to less than half, the backlight turned down to the minimum setting, and the wireless LAN mode should be turned off.
The PSP has many power-save options that should be configured correctly to ensure you get the most out of your battery.
If you find that the standard battery isn’t enough, you can purchase additional batteries or portable chargers from £15 – £35.