Used batteries/batteries used for testing in lightly used condition without original packaging. Batteries are charged and tested in flashlights to ensure their functionality. Batteries are shipped in a plastic battery organizer for safety.

>15A High Discharge 4000mAh Battery

The next generation 21700 rechargeable battery from NITECORE, the NL2140HP has an amazing 4000mAh capacity. This powerful battery has improved performance, and superior energy density compared to previous 18650 batteries. An ideal companion for the HC35 headlamp from NITECORE, an extra 21700 is a great back-up battery to have on hand, as more electronic products and NITECORE flashlights will utilize this battery. The NL2140HP is a high performance battery capable of >15A discharge for high lumen lights and headlamps.

Premium Quality Battery

The NITECORE NL2140HP comes standard 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 NL2140HP, that features a built-in pressure relief valve, high temperature resistant design, and built-in PTC to prevent surges. This protects you from overcharging, over-discharging, as well as short-circuits. The NL2140HP 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 NL2140HP, is globally insured and has earned multiple certifications for electronic use.

21700 Battery Buying Guide

Learn more at 21700 Battery Guide: What You Need to Know