The gas-comparable, the powerful, cordless Shimu brushless chainsaw offers vigorous performance and easy handling to make heavy duty jobs simple -- all without the hassle of gas. The strength and revolutionary design of this chainsaw will ensure durability and a smooth, precise cutting experience. It's powered by the 20 volt lithium-ion battery system, which delivers longer run time, higher performance, and greater output. And innovative electronically-controlled electric motor that is brushless, low-wear and works with outstanding staying power.