With a small size, NITECORE NC10000 Highland Power Bank is one-hand operable. The power bank weighs only 168.5g (5.94oz), making your outdoor load as light as possible. With two 21700 10,000 Li-ion batteries, this power bank has a max output of 20W, a max input of 18W and 2 LEDs as well as the IPX5 waterproof rating, making it suitable for highland travelling, outdoor running, and camping.