... . Approx. operation time: up to 2 - 2.5 hours. Best replacement for the original BP-508 / BP-511 / BP-511A / BP ... ) Panasonic PV GS120, Panasonic PV GS150, Panasonic PV GS19, Panasonic PV GS250, Panasonic PV GS31, Panasonic PV GS35, Panasonic PV GS400, Panasonic PV GS50, Panasonic PV GS65, Panasonic PV GS70, Panasonic ...