The 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 40V platform comes with a 3 year tool / battery warranty to protect your investment. New 40V 21″ Brushless Walk Behind Push Lawn Mower: 21″ Deck Size Durable steel that plows through the tallest grass Push Button Start Press and mow, no more cord yanking Intelligent Brushless Motor Technology 2x more torque, more power, longer runtimes, quiet operation, and extended motor life Highly efficient 40V brushless motor provides more torque, quiet operation, and longer life Single lever 7-position height adjustment EZ Fold handles are simple to use Just pull, fold, and store in seconds taking up to 70% less space Dual battery port design enables one battery to be stored while the other fuels the mower, saving you a trip to the garage The convenient 3-in-1 cutting deck lets you choose your finish from mulching, bagging or side discharge on the lawn Battery Powers 75+ 40V Products One battery to mow, blow, cut, trim, cultivate, and more!