Power up your yard cleanup with the cordless BLACK+DECKER® 40-volt Lithium Sweeper/Vacuum (model LSWV36), which eliminates the weight, noise and hassles of gas-powered equipment. In addition to blowing debris, you can switch to vacuum mode to mulch leaves and more into its included half-bushel collection bag. It's powered by BLACK+DECKER®'s high-powered 40-volt lithium battery system, which offers power, excellent runtime, and the versatility to share batteries with other tools within the system. Mulch Ratio 6:1 .