Description
The Nitecore NL2140R is a 4000mAh 21700 rechargeable battery featuring a built-in USB-C port for direct charging. It delivers a 3.6V output and includes an integrated protection circuit to safeguard against overcharging and short-circuiting. Built for durability, it uses nickel-plated stainless steel protectors and thermal safety valves, making it a reliable, high-capacity power source for modern high-performance flashlights.
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NL2140R Brochure – NiteCore_NL2140R




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