Specification Model: Li-ion 18650 5000mAh 3.7V Size: 18650 Chemistry: Lithium Ion(Li-ion) Nominal Voltage: 3.7V Cut off Voltage: 2.75V Capacity: 5000mAh Weight: 130g Dimension: 38mm*33mm*68mm OEM: with tabs, wires, connectors, battery packs Packing: traying packing or in small boxes Certificate: KC, BIS, UN38.3, MSDS Description Temperature: Charge: 0C ~ 45C Discharge: -20C ~ 60C Storage: -20C ~ 30C Humidity: 65±20% Cycle life: >500 times Standard charge current: 0.1C for 16h Fast charge current: 0.5C for 1.2h Max discharge current: 15C