Spare power supply for Li-Ion 18650

Spare container for 18650 Li-Ion batteries, which can be attached to a headband and extend the working time of the headlamp.

Dedicated to Nitecore NU40, NU43 and NU50 headlamps.

Technical data:
Input: 5V⎓2A
Output: 5V⎓2A
Battery Option: 18650 lithium-ion battery (excluding flat battery)
Dimensions: 106 mm x 40 mm x 35 mm
Weight: 65g

NO battery included