Nitecore Carbon Battery 6K Extended Headlamp Runtime Kit, battery, 6000 mAh

The Nitecore Carbon Battery 6K Extended Headlamp Runtime Kit is a headband with rechargeable 21700 Li-ion battery with a capacity of 6000 mAh (3.6V and 21.6Wh). You use this battery kit as an external battery in combination with your Nitecore head torch. It significantly extends the burn time of your head torch. In the case of the Nitecore NU40 head torch, for example, you get 2x more burn time with this external battery! Besides head torches, the battery is also suitable as a power bank for charging electronic devices such as action cameras and smartphones.