NITECORE 18650 Extension Battery Case At-A-Glance

Connects directly to headlamp
Can charge a headlamp's built-in battery while the headlamp is on
Lightweight and well-balanced design
Four red flashing lights can alert others in your surroundings
Power indicators to let you know when it's time to charge

Included in the Box

Nitecore 18650 Extension Battery Case
Cable Clip
(Battery sold separately)

Power Extension for the NU40, NU43, and NU50 Headlamps

The Nitecore Extension Battery Case is designed to extend the battery runtime of the NU40, NU43, and NU50 headlamps. 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.

Lightweight and Comfortable

Weighing only 2.2 ounces 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.

User-Friendly

The Extension Battery Case is compatible with high-capacity 18650 rechargeable batteries, excluding flat-top batteries. 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.

TECHNICAL SPECIFICATIONS

Input	5V ~ 2A
Output	5V ~ 2A
Battery Option	18650 Li-ion Battery (Flat Top Excluded)
Dimensions	L-4.17"xW-1.57"xH-1.38"
Weight	65g/2.29 oz

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.