Product Name => Battery 18650 Li-ion batterty Nominal capacity => 2500mAh (0.2C discharge to 2.75V) Min capacity => 2450mAh (0.2C discharge to 2.75V) Dimension => 18*65mm Certification => CE, UL, CB, RoHS, UN38.3, MSDS, IEC62133, ISO9001 etc Nominal voltage => 3.6V Internal resistance => ≤22mΩ Discharge termination voltage => 2.75V Charging upper limit voltage => 4.20 ± 0.05V Standard charging current => 0.2C Fast charging current => 1C Standard discharge current => 0.2C Max continuous discharge current => 7.5A Operating temperature => Charge: 0 ~ 45℃; Discharge: -10 ~ 60℃ Storage temperature within 1 month => -5 to 45 ℃ Storage temperature within 6 months => 0 to 45℃