Nitecore NL1840AW 4000mAh 18650 Li-ion Rechargeable Battery

The NITECORE NL1840AW is an all-weather 18650 rechargeable battery ready for all conditions. Operable at -40°C and up to 10,000m altitude, it delivers 4,000mAh (14.4Wh) with 10A max continuous discharge and IPX6 water resistance. That gives Australian users reliable power for compatible NITECORE headlamps and torches in snow sports, high-altitude climbs and cold-weather work.

Cold Weather Battery Rated to -40°C

At -40°C, conventional Li-ion batteries can drop to 10% or less of their capacity or become unusable. NITECORE Lab testing shows the NL1840AW retains at least 65% available capacity at the same temperature. Its continuous power in freezing temperatures makes this 18650 lithium battery a reliable choice for snow sports and cold working conditions.

High-Altitude Ready with IPX6 Protection

Tested at 11.6 kPa low pressure in the NITECORE Lab, it delivers stable power at altitudes up to 10,000m throughout high-altitude ascents. Its IPX6 rating protects against rain, snow and unexpected weather, making it a dependable all-weather battery for Australian alpine trips.

4,000mAh High-Capacity 18650 Li-ion Battery

Developed with industry partners, the NITECORE NL1840AW reaches an energy density of 288mWh/g. It offers approximately 17.6% more capacity than a conventional 3,400mAh 18650 battery. Its 14.4Wh output is equivalent to about four CR123A batteries, and it supports more than 500 full charge cycles for cost-effective use.

18650 Protected Battery Safety Features

A built-in intelligent protective circuit with a high-quality protection IC guards against overcharge, over-discharge and short circuits, while a high-power MOS-FET improves efficiency and output. A pressure relief valve activates if the temperature rises rapidly, nickel-plated steel protectors resist impact and oxidation, and the injection-moulded positive terminal adds water and impact resistance. Compatible lights include the UT6, HC60 UHE and HC65 UHE headlamps and the TrailSight and MT2C Pro torches.

Combining cold and altitude performance, IPX6 protection and high capacity, the NL1840AW is a reliable headlamp and torch battery for adventures and cold-weather work across Australia.