The DEWALT DCCS620B runs on 20-Volt MAX batteries. Gas-free operation eliminates the cold starts, fumes, carburetor issues and maintenance involved with gas-powered chainsaws. This battery powered chainsaw is built to work hard. Use it for tough construction and outdoor jobs like cutting beams, demolition work and managing tree limbs. The lightweight design maximizes user control. Brushless motor technology delivers extreme runtime and long motor life.