The mobi v 17 portable bike pressure washer features a 12v internal rechargeable battery making the unit fully portable and a completely unique innovation for cleaning on the move the mobi v 17 portable bike pressure washer is quiet and versatile in operation with its variable pressure output giving the ability to clean a dog after a walk or a mtb after hard days trail riding the mobi v 17 portable bike pressure washer retains pressure in the hose through high tech pressure se