4 pcs Tenergy RCR123A 3.0V 750mAh LiFePO4 Rechargeable Batteries
New Chemical LiFePO4 Li-Ion battery * Rechargeable LiFePO4 RCR123A 3.0V 750mAhBattery * Life cycle: 2000 times (Traditional Li-ion: 500 times) * Never explode or catch fire * 100% Compatible with Disposable CR123A Batteries. Not compatible with SureFire Flashlights. Don't use these batteries with SureFire flashlights. * Working Voltage:3.2V and Peak Voltage: 3.6V * Charging cut-off voltage: 3.6V * Discharge cut-off voltage: 2.2V o Please never overdischarge battery below 2.2V/cell o Charge the this battery with LiFePO4 RCR123A smart charger. * # Capacity:  # Capacity:  * Nominal: 450mAh * Maximum:750 mAh * Maximum discharging rate:< 550 mA * Maximum charge current: <550 mA * Cell's dimension: 17mm Dia. x 34.5mm H. * Weight: 0.6 oz (18 grams).