8hours 33 min i was at 9%, medium usage for me, probobly 20-30 min of phone on a BT Hend 4g in 1 headset, found 4g in 1 ares so that was on for 30min. (i turned it on as i drove arond different places checked if 4g avalible then turned off) sent probobly 50-100 txts showed about 3 min of 3d...