Nitecore NL1840AW 4000mAh All-Weather Rechargeable 18650 Battery

Extreme Cold Resistant Battery

Engineered for extreme cold environments, the NL1840AW features a 4000mAh capacity, delivers efficient discharge performance at -40°F, and ensures stable operation at altitudes up to 10,000 meters. The NL1840AW is a high performance battery capable of 10A discharge for high lumen flashlights and headlamps like the UT6, HC65 UHE, MT2C Pro and more. Featuring Nitecore's hallmark safety standards and precision engineering, the NL1840AW reinforces the brand's reputation as a reliable source of rechargeable Li-ion batteries. Whether you're pushing the limits on high-altitude climbs, braving extreme cold in snow sports, or working in cold conditions, the NL1840AW all-weather Li-ion battery delivers the reliable power you need to keep going.

Premium Build with Safety Features

The NL1840AW incorporates a built-in intelligent protective circuit and a pressure relief valve, safeguarding it against overcharging, over-discharging, and short circuits. Crafted with nickel-plated stainless steel protectors that fortify it against impacts, ensure efficient conductivity, and fend off oxidation, the battery is further coated with a durable metallic film, bolstering its resilience against abrasion. Its IPX6 water resistance rating delivers reliable protection when facing the rain, snow, and unexpected weather conditions. Designed for longevity, it can withstand over 500 full recharge cycles, making it both cost-effective and environmentally friendly.