Purchased at an estate sale without charger. Amazingly still has a charge & powers on. Functions as it should. Vacuumed game room downstairs & did very well. Filters seem like new. If I didn’t have several vacuums already this would definitely be a keeper. I know nothing more on this unit except in the above description. But it will eventually need a charger to recharge which are available online on amazon. Selling as-is.