Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A406 Safari/7534.48.3)
12hr standbye or if left over night 20hr. That seems the average with people who use their phone. Apple quoted 200hr standby. It seems a misprint 20hrs is more accurate.