Battery type: Li Polymer battery; Voltage: 7.4V,11.1V,14.8V, 18.5V; Capacity: 500mAh to ... Also, we can provide OEM and ODM service. Battery Type: Li-ion BatteryStandard Voltage: 7.4V / 11.1V / 14.8V / 18.5VStandard ... Capacity: 500 mAh to 50 AhMaximum Charge Voltage: 8.4V / 12. ... 20 °C to 85 °C Storage humidity: ≤ 75% Lithium ion battery pack