NS-LB01 SIZE AAA Chemical System: Zn/KOH/MnO2 Nominal Voltage: 1.5 Volts Mercury Content: Less than 0.0001% Nominal Dimensions: ?10.5(mm) x 44.5(mm) Max Weight: 11.5g Nominal Capacity: 1300 mAh Jacket: Aluminum Foil Shelf Life: 36 Months