10PCS 21700 30A 4000mah 3.7V High Drain Flat Top Battery
10PCS 21700 30A 4000mah 3.7V High Drain Flat Top Battery
Specification: Chemistry: INR Max. continuous discharge current: 30A Nominal capacity: 4000 mAh Nominal voltage: 3.6 V Discharge end voltage: 2.5 V Charging voltage: 4.20 +/- 0.05 V Standard charging current: 1.5 A Protection: Not Protected (Flat-Top) Size:Diameter: 21.04mm; Length: 70.10mm