Power your outdoor adventures longer with the NITECORE 18650 Extension Battery Case, a versatile rechargeable battery accessory designed for NU40, NU43, and NU50 headlamps. This compact USB-C powered battery case extends your headlamp runtime while providing a convenient 5V 2A power bank function for charging devices like smartphones, flashlights, and sports watches. Built with a lightweight 65g design and IP66 water-resistant protection, it is ideal for trail running, hiking, climbing, camping, trekking, searching, and night work. The integrated blue indicator lights display power levels, while the red flashing safety indicator improves visibility during nighttime activities. Enjoy reliable portable power and enhanced lighting performance wherever your journey takes you.
