Description: 3.7V 1700mAh 14500 Pump Lithium-ion Battery Product No.: HG2AE2181 Cell model:  14500 / 850mAh / 3.7V Battery Specification: 1S2P / 1700mAh / 3.7V   Nominal voltage: 3.7V Nominal capacity:  1700mAh Charging voltage:  4.2V Charging current: 400mA Discharge current: 400mA Maximum discharge current: 1000mA Discharge cut-off voltage: 2.75V Internal resistance : ≤300mΩ Delivery voltage: 3.6-4.0V Battery weight: 50g Product size: 53.5 * 29.5 * 15.5mm (Max) Operating temperature: Charging temperature: 0-45°C; Discharge temperature: -20-60°C Storage temperature environment: 1month - 20-60 ° C; 3 months - 20-45 ° C; 12 months - 20-25 ° C Relative humidity: 65 ± 20% Battery structure: Lithium Battery protection: short circuit protection, overcharge protection, overdischarge protection, overcurrent protection, etc.      Application field: portable medical equipment powered by Lithium-ion Battery