The Mow Joe MJ408C is powered by a rechargeable 24 volt battery for all your mowing needs. Once charged, this powerful mower can cut a full quarter acre of lawn. The battery cuts for over an hour during full charge and normal use. It is designed like a car battery to last for many mowing seasons and is replaceable. The 20 in. all steel blade cuts with precision and offers a 3 in 1 cordless mowing experience. Side discharge or rear bagger, the mulching blade cuts the blades of grass into fine particles. If you choose to bag, the over 15 gallon capacity bag is easy to detach for convenient disposal. One lever controls seven different cutting heights, for a tailored cut from 1.75 inches to 3.75 in.. No gas, no oil, and no tune-ups, this mower is virtually maintenance free.