Nitecore Carbon Battery 6K Extended Headlamp Runtime Kit for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps rechargeable headlamp;usbc rechargeable headlamp Low: 30 / 70 hr

Low: 30 / 70 hr

Overheating prevention through temperature monitoring and optimal heat dissipation design

Powered by a single AA sized battery

Monitors and charges each battery slot independently

turn off and quickly turn on the light again

Nitecore Carbon Battery 6K Extended Headlamp Runtime Kit for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps rechargeable headlamp;usbc rechargeable headlamp Low: 30 / 70 hrThe Nitecore Carbon Battery 6K Kit can double or triple the runtime of Nitecore headlamps such as the NU40, NU43, NU45, NU50, and HC65 UHE. By connecting directly to the headlamp, the Carbon 6K Battery Kit activates the headlamps' Performance Mode, ensuring long lasting illumination and stronger brightness. It first draws power from the battery kit, maximizing its runtime before utilizing the headlamp's internal battery. Weighing just over three