The Nitecore NL1840 rechargeable Li-ion battery pack is suitable for many headlamps and torches. Rechargeable batteries can be recharged up to 500 times, giving you the convenience of saving money - and the environment - by powering your device.
Specifications:- Power: 4000 mAh
- Voltage: 3.6 V
- Product size: 14.35 x 3.18 cm
- Product weight: 50 g
- Package size: 12.6 x 6.6 x 6.6 cm
- Package weight: 60 g
- Warranty: 18 months