Battery power: 550W. - Application: Chainsaw. Large capa battery. Lighter and more portable. Wear-resistant chain, high hardness, wear-resistant, not easy to break. We are professional factory to make kinds of motorcycle CNC accessory,such as kinds of modified brake clutch levers,rearsets,foot pegs,steering dampers,kickstand sidestand,handlebar clamp,swingarm spool bolts and so on.