Description: 7.4V 2000mAh 18650 Massager Lithium-ion Battery Product No.: HG2AE4301 Cell model:  18650 / 2000mAh / 3.7V Battery Specification: 2S1P / 2000mAh / 7.4V Nominal voltage: 7.4V Nominal capacity:  2000mAh Charging voltage:  8.4V Charging current: 1000mA Discharge current: 1000mA Maximum discharge current: 2000mA Discharge cut-off voltage: 5.5V Internal resistance : ≤240mΩ Delivery voltage: 7.2-8.4V Battery weight: 100g Product size: 136 * 23.5mm (Max) Operating temperature: Charging temperature: 0-45°C; Discharge temperature: -20-60°C Storage temperature environment: 1month - 20-60 ° C; 3months - 20-45 ° C; 12months - 20-25 ° C Relative humidity: 65 ± 20% Battery structure: Lithium Battery protection: short circuit protection, overcharge protection, overdischarge protection, overcurrent protection, etc. Application field: Massager, personal health care, electronic products powered by Lithium-ion Battery