The motor is the heart of any chain saw, and its power output determines how well it performs. With gas engines, you get to choose between two very different types: heavy-duty (HD) or light-weight (LW). They are both good for their own purposes; HDs typically have more torque, while LWs weigh less and are easier to transport.
Electric motors, on the other hand, offer a lot of power with less vibration; however, they require more maintenance than gas-powered ones.
battery-powered chainsaws are very light and deliver high-end performance, but their batteries can’t hold a charge for long – you need to recharge them after every use.
Powered Start Technology (PS) is designed to ease the task of starting up your saw by eliminating much of the pull effort involved in getting it going. For some models, you can start the chainsaw with a single press of the button. However, this convenience does come at a cost as it impacts on durability.