I'm in my chair 24/7, out on deck, down 800 ft drive, into neighborhoods, around the pool, here, there, everywhere. Up and down inclines. Recharge every other night about. Kids like to go joy-riding in chair when I'm not in it. Push heavy furniture with it when things get out of place (ok, sometimes it's me and the chair that pushed them out of place) I guess it is time for a new battery.