The Nitecore NL2142LTHPR Li-Ion battery was specially developed for use on cold days with temperatures down to -40°C. With the USB-C port, the 21700 battery offers an additional charging option. Thanks to its clever architecture, the battery has a capacity of 4200 mAh with a maximum discharge of 15A, which puts a stop to the otherwise energy-sapping cold. Suitable for Nitecore E4K, HC35, MH12S and other models.