Color Black Grey Brand GP Model 1604S Quantity 10 Piece Material Electronic components Cell Type OthersMercury-free carbon Battery Model Others9V 1604S-S1 6F22 Head Type Button Top Voltage 9 V Rechargeable No Rechargeable Times Nonchargable Built-in Protected Circuit No Over Voltage Protection No Short-Circuit Protection No Over-Charging Protection No Over-Discharging Protection No Mercury Free Yes Other Features Carbon batteries in intermittent use can recovery a little amount of itself energy; Mainly used in low-power appliances such as electronic watches wireless mouse flashlight transistor radios tape recorders multimeter wireless microphones small toys. Packing List 10 x Batteries