Electrical Surgical tools Lithium-ion battery 18650 11.1 v,4000mah medical equipment batteries Nominal voltage:11.1V Capacity:4000mAh Dimension:can be customized according to requirements AC Impedance Resistance:≤200mΩ Discharge Cut-off Voltage:9.00V Charge Current:800mA Max. Charge Voltage:12.6V Storage humidity:< 75%RH Max Discharge Current:8A Weight:300g Fit for:Electrical Surgical tools,medical equipments,Portable imaging equipment ,etc All the battery datasheet can be customized according to requirements