The Vax Air Cordless (www.vax.co.uk/aircordless) offers up to 50-minutes of runtime from two extended runtime LithiumLife Batteries. We listened to Air Cordless users' requests to be able to keep their second battery on-board while cleaning, ready for a quick changeover. In response, we developed this snap-on mount. The battery mount attaches to the upper section of the handle/extension wand. You can choose to face the battery forwards or, as we've found works best, backwards. Print will require supports.