Nitecore Carbon Battery 6K Extended Headlamp Runtime Kit for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps rechargeable headlamp;usbc rechargeable headlamp Monitors and charges each battery

Monitors and charges each battery slot independently

Powered by a single AA sized battery

Powerful 1-hour worldwide conditioning travel charger for all NiMH rechargeable AA / AAA batteries

Made from aero grade aluminum alloy for impact resistance

24 inches and a weight of only 8

Nitecore Carbon Battery 6K Extended Headlamp Runtime Kit for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps rechargeable headlamp;usbc rechargeable headlamp Monitors and charges each batteryThe 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