Call it for function, whether you're throwing an estimate or actually timed, what model, and when you bought your touch. Be truthful! Bought the 2g 32gig from the apple store the day (Wednesday) after it was released. Pure surfing: 6 hours Surfing plus tunes to headphones 4 hours Just music with backlight off: 8 hours Pure video: 3.5 hours Times estimated, actuals to come one of these days. Although not timed these a very close to truth.