The WORX AIR comes with a rechargeable 32-volt MAX lithium battery. Charge the battery anytime and it will be ready when you need it with no discharge or memory effect. The average runtime can be up to 20 minutes or more(depending on attachments) giving you plenty of time to create the clean zone around your home. The MAX lithium battery can recharge in up to 3 hours. With the 120 mph air speed the WORX AIR easily blows dry debris from hard surfaces such as decks patios sidewalks garages and workshops. At less than 3.8 pounds the WORX AIR can go with you anywhere. Take it in the RV the boat or the car wherever you want to create a clean zone or need to inflate rafts mattresses or toys.