72.9g: The AceBeam IMR21700NP-510A-USB is button top rechargeable Li-ion 21700 battery. The battery has a capacity of 5100 mAh with USB recharging port and comes with Input/Output USB cable. It has a feature of LED indicator for charging. The battery is compatible with AceBeam W30 and other 21700 torches.
- Typical Capacity: 5100 mAh
- Nominal Voltage: 3.7V
- Discharge End Voltage: 2.5V
- Standard Charge Current: 1.5A
- Max Continuous Discharging Current: 20A
- Dimensions: (L) 74.88mm x (W) 21.4 mm
- Weight : 72.5 g