Description: 3.6V 3350mAh 18650 Walkie Talkie Lithium-ion Battery Product No.: HG1AE4922 Cell model:  18650 / 3400mAh / 3.6V Battery Specification: 3350mAh / 3.6V    Nominal voltage: 3.6V         Nominal capacity:  3350mAh Charging voltage: 4.2V   Charging current: 670mA Discharge current: 670mA Maximum discharge current: 3500mA Discharge cut-off voltage: 2.75V Internal resistance : ≤140mΩ Delivery voltage: 3.6-4.0V Battery weight: 46g Product size: 69* 19.5  (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: Safety, monitoring device powered by Lithium-ion Battery