Next-Gen 4000mAh 21700 Battery - Improved performance and superior energy density compared to previous 18650 batteries. An ideal companion for the all new lights using this new 21700 battery platform.

Maximum Safety - The NITECORE NL2140 comes with all of the safety features, quality engineering, and more that has made NITECORE a trusted brand for rechargeable Li-ion batteries. Your expensive electronics are safe paired with an NL2140 that features a built-in pressure relief valve, high temperature resistant design, and built-in safeguards to prevent surges. This protects you from overcharging, over-discharging, as well as short-circuits.

Premium Materials - The NL2140 is built with premium materials, such as nickel-plated stainless steel connectors for impact resistance, good conductivity, and resistance against oxidation. Safe and reliable, the NL2140 is globally insured and has multiple certifications for electronic use.