We have two Greenworks 40V 4.0Ah Lithium batteries (so you can swap them out as you work) and a 40v charger that we no longer need. The leafblower that goes with them is fiddly - it comes on and off irregularly, but you might be able to make it consistent. The price for the batteries and charger is about half what they cost new, and the blower is thrown in as an extra.