With the Elev8² battery pack you can enjoy the smooth, fast, electrically powered height adjustable features of an Elev8 desk, without the need for any power leads. Perfect for accommodating sit-stand desks in locations where getting access to a wall plug may not be convenient, this battery pack discreetly mounts to the underside of Elev8 Touch desks and works for up to 4 weeks on a single charge.