The DeWALT 60 V max string trimmer is designed to power through tough overgrowth and withstand everyday heavy-duty usage. It features a high-efficiency brushless motor that maximizes runtime and motor life and its lightweight and ergonomic design maximizes control and minimizes stress on your arms. This kit includes a FLEXVOLT? 20/60 V max battery that powers 60 V max tools or it can be backwards compatible to work with 20 V Max tools.