Description: 3.7V 1500mAh 18650 Massager Lithium Battery Product No.: HG1AE5063 Cell model:  18650 / 1500mAh / 3.7V Battery Specification: 1S1P / 1500mAh / 3.7V Nominal voltage: 3.7V Nominal capacity: 1500mAh Charging voltage:  4.2V Charging current: 300mA Discharge current: 300mA Maximum discharge current: 750mA Discharge cut-off voltage: 2.75V Internal resistance : ≤80mΩ Delivery voltage: 3.7-3.9V Battery weight: 45g Product size: length 67.2 * diameter 20.8mm (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: Messger, health care devices powered by Lithium Battery