Extension Battery Case (18650)

The Nitecore Extension Battery Case is designed to extend the battery runtime of the NU40, NU43, NU50 headlamps and other compatible models. When the headlamp is on, it will first be powered by the battery case, followed by the built-in battery of the headlamp allowing it to maximize its runtime.

Weighing only 65g and directly attached to the headlamp band on the back, it provides a balanced weight distribution to the user for a comfortable and secure wearing experience.

The Extension Battery Case is compatible with high-capacity 18650 rechargeable batteries (Flat Top Not Compatible). Equipped with an intelligent charging function, connect a USB cable to a USB-C adapter to begin charging the battery when not in use. For added safety, it features four red flashing lights to act as a signal light at night. Short press the Power Button for the power indicators to illuminate your remaining battery power.

Features:

• Compatible with Nitecore NU40, NU43, NU50 headlamp and other compatible models
• Connects directly to the headlamp via USB port
• Powers and charges the headlamp simultaneously
• Provides balanced weight distribution (*may be affected by different headlamps and batteries)
• USB-C Input and Output
• Power level display
• Power indicator lights flash in red for added safety of the wearer at night
• Input: 5V⎓2A
• Output: 5V⎓2A
• Battery Option: 18650 Button Top Li-ion Battery (Flat Top Not Compatible) (Not Included)
• Dimensions: 106mm x 40mm x 35mm
• Weight: 65g