The HD 4/11 C BP is the first Karcher Professional pressure washer to run on lithium ion batteries, making it ideal for mobile users and for locations where it is awkward or impossible to access a mains power supply. A user-friendly alternative to petrol, Karcher Professional 36v lithium ion batteries deliver excellent cleaning performance and are also compatible with other cordless tools in the same range. The HD 4/11 C BP can be used in horizontal or vertical mode and like all Karcher Professional pressure washers it is made from high quality components including a brass cylinder head and EASY!Lock quick release couplings for compatibility with a wide variety of accessories. The machine is supplied with a suction hose which enables it to draw water from freestanding sources like tanks, and features an eco! efficiency mode which helps to conserve battery power during lighter cleaning applications. SpecificationsBattery Voltage: 36vBattery Type: Karcher Professional Lithium Ion