IMREN 21700 4500mAh 8A Button Top USB Rechargeable Battery

Specifications: Manufacturer: IMREN Size: 21700 Style: Button Top Chemistry: INR Nominal Capacity: 4500mAh (Max) Max Continuous Rated Discharge: 8A Dimensions: 75.20 mm (Max) x 21.30 mm (Max) Weight: 80.0g (Max) Cut-off Voltage: 2.5V Nominal Voltage: 3.6~3.7V Max Voltage: 4.2V ± 0.05V Protected: Yes, Protected with PCB Note: this item comes with a branded plastic storage case and USB cable for every 1 pack. This battery can be charged via USB charging port (Charging adapter not included).