A battery-powered polisher is a power tool used for polishing various surfaces, such as cars, boats, furniture and so on. Instead of being connected to an electrical outlet, the machine is powered by a battery built into the device. This makes the battery-powered polisher very portable and convenient to use, as you are not tied to a socket and can easily move the machine around without a cord getting in the way. Discover the different types of battery-powered polishers below.