Efest IMR 21700 4000mAh 30A 3.7V Rechargeable High Drain Flat Top Battery (2 Pack)

One of the great performing Efest 21700 size batteries, the Purple 4000mAh is a great cell which offers excellent overall power, while providing a large 4000mAh of capacity.Product Description:Style: Flat TopChemistry: IMRSize: 21700Nominal capacity: 4000mAh (Max) Max Continuous Rated Discharge: 30ADimensions: 70.20 mm (Max) x 21.50 mm (Max)Weight: 68.00g (Max)Discharge Cut-off Voltage: 2.50VNominal voltage: 3.60-3.70VFull Charge Voltage: 4.2V +/- 0.05VProtected: No, UnprotectedStandard Charge: Constant Current 1000mA, Constant Voltage 4.2V Operational Charging Temperature Range: 0 to 50 degrees CelsiusOperational Discharging Temperature Range: -10 to 60 degrees CelsiusWhat you will get:2x Efest IMR 21700 Purple Series 4000mAh Rechargeable Flat Top High Drain Batteries

Note: We have tested random samples from each and every shipment to make sure all the chargers are fresh and genuine. You won't get this extra service from most suppliers.