The Greenworks 40V lithium-ion platform powers over 40 outdoor products including lawn mowers blowers string trimmers chainsaws hedge trimmers and much more! The 40V lithium-ion battery provides the power you need and delivers fade-free power with no memory loss after charging. The outdoor power equipment allows you to tackle up to 1/2 acre with the available 2Ah 2.5Ah 3Ah 4Ah 5Ah and 6Ah batteries. USB ports are integrated into the BAF701 BAF702 L-300 BAF704 BAF705 L-600 batteries making it a portable charger for phones tablets and other compatible electronic accessories. The Greenworks 40V platform comes with a 3 year tool / battery warranty to protect your investment