Description: 3.6V 2600mAh 18650 Massager Lithium Battery Product No.: HG1AE3392 Cell model:  18650 / 2600mAh / 3.6V Battery Specification: 2600mAh / 3.6V Nominal voltage: 3.6V Nominal capacity:  2600mAh Charging voltage:  4.2V Charging current: 520mA Discharge current: 520mA Maximum discharge current: 1300mA Discharge cut-off voltage: 2.75V Internal resistance : ≤ 80m Ω Delivery voltage: 3.6-4.0v Battery weight: 50g Product size: 68.7 * 19mm (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, over discharge protection, over current protection, etc Application field: Lithium Battery for Massager, personal care, healthcare equipments