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 delievers 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