Description: 18V 5000mAh 18650 Power Tools Lithium-ion Battery Product No.:HG10AE631 Cell model: Samsung 18650 / 2500mAh / 3.6V Battery Specification: 5s2p / 5000mAh / 18V Nominal voltage:18V Nominal capacity: 5000mAh Charging voltage: 21V       Charging current:1000mA Discharge current:1000mA Maximum discharge current: 5000mA Discharge cut-off voltage: 13.75V        Internal resistance :≤ 180m Ω   Delivery voltage:17.5-19V Battery weight:550g Product size:115.5 * 72.5 * 63.5mm (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, over discharge protection, over current protection, etc Application field: Power Tools, industrial instruments, electric tools powered by Lithium-ion Battery