Quarkcell AA Type Model BA1450P1 Nominal Voltage 1.5 Volts Nominal Capacity 600mAh Internal Impedance ≤ 300mΩ @1KHz Operation Temp. -20℃ ~ +50℃ Dimensions Φ14 ±0.2 * 50.3 ±0.3 mm Weight 18.8±0.5 g Quark-AAAA-ChargerQuark-AAAAAA-Charger