The Nitecore NL2150 21700 Li-ion battery features a long lifespan, high energy density and powerful performance. First introduced by the electric car industry, this 21700 cell has a 5000mAh capacity, 3.6V and 14.4Wh.

As with all Nitecore batteries safety is paramount and the NL2150 cell has a range of safety features to keep you, your devices and chargers as safe as possible. The 21700 battery has an innovative anode design with high temperature resistance, built-in PTC to inhibit high current surges, pressure relief valve which activates in the event of a rapid temperature increase and a microporous barries that protects the delicate internal components. Externally, the cell is equipped with nickel-plated stainless steel protectors at both ends and is coated with a durable metallic film to guard against abrasion.

The 21700 is recommended to use with the following Nitecore chargers: UI1, UI2, UMS2 and UMS4.

Please note: We are unable to accept returned batteries once they have been opened, so please ensure they are the correct cell for your device before ordering.

Due to shipping restrictions we are unable to send orders containing only batteries without a device to Northern Ireland and the Channel Islands. Orders that include a device such as a torch and/or charger are unaffected.