Nitecore Extension Battery Case w/ USB Power Bank Function (for NU40/NU43/NU50 Headlamps)

The Nitecore Extension Battery Case is a charging case built specifically for headlamps. The battery case connects directly to the headlamp, guaranteeing long-lasting illumination and stronger brightness. When connected to the Nitecore NU40, the NU43, or the NU50, the headlamps will automatically go into Performance Mode, creating a better lighting experience for the user. 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 less than three ounces, its well-balanced design provides an optimal weight distribution to the user for a comfortable and secure wearing experience.

The Extension Battery Case is compatible with high-capacity 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.

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

• LED: ~
• Maximum Brightness: ~ lumens
• Peak Beam Distance: ~ yards
• Peak Beam Intensity: ~ cd
• IP Rating: ~
• Impact Resistance: ~ m
• Input: 5V ~ 2A
• Output: 5V ~ 2A
• Battery Option: 18650 Li-ion Battery (Flat Top Excluded)
• Brightness & Runtimes:
  • Turbo: ~ / ~
  • High: ~ / ~
  • Mid: ~ / ~
  • Low: ~ / ~
  • Ultralow: ~ / ~
  • Strobe: ~ / ~
• Dimensions: L-4.17"xW-1.57"xH-1.38"
• Weight: 2.29oz

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