The Nitecore HLB2500 is a rechargeable, all-weather Li-ion battery pack engineered specifically for Nitecore HA27 UHE and HA29 UHE headlamps. Featuring a 2500 mAh / 3.8V / 9.5Wh capacity, it is built for users requiring stable power output under challenging conditions—especially in extreme cold, winter sports, high-altitude trekking, and mountaineering.
A key advantage of the HLB2500 is its ability to operate seamlessly down to -40 °C and at altitudes up to 10,000 meters. This makes it an essential spare battery for expeditions where standard batteries rapidly lose efficiency due to sub-zero temperatures, low air pressure, or harsh weather.
The battery charges conveniently via USB-C with a 5V/1.5A input, featuring a clear red/green charging indicator. Furthermore, the HLB2500 boasts an IPX8 waterproof rating alongside built-in safety mechanisms protecting against overcharging, over-discharging, and short circuits. Weighing only 51 grams, it is effortlessly portable in your pocket or backpack.
All-Weather Power: Operates down to -40 °C and at high altitudes up to 10,000 m.
Tailored for UHE Series: Fully compatible with Nitecore HA27 UHE and HA29 UHE headlamps.
Direct USB-C Charging: Includes a dual-color red/green status indicator.
Rugged & Safe: IPX8 waterproof rating with comprehensive internal circuit protection.
Ultra-Lightweight: Weighs just 51 g, making it the perfect backup power unit.
Brand: Nitecore
Model: HLB2500
Compatibility: Nitecore HA27 UHE, HA29 UHE
Battery Technology: Lithium-Ion (Li-Ion)
Capacity: 2500 mAh / 3.8V / 9.5Wh
Charging Interface: USB-C (5V / 1.5A)
Waterproof Rating: IPX8
Circuit Protection: Yes (overcharge, over-discharge, short-circuit)
Dimensions: 62 x 38.5 x 16.4 mm
Weight: 51 g
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