"There is growing demand for cordless alternatives to gas-powered outdoor power equipment. Makita is meeting demand with an expanding line of cordless OPE, including the 18V LXT 12 Top Handle Chain Saw (DUC356Z, tool only). With zero emissions, lower noise, and considerably less maintenance than gas-powered chain saws, the DUC356Z is a welcome solution for cutting and trimming applications. The compact top-handle design makes it ideal for the professional tree care industry.Powered by one 18V LXT Battery, the chain saw is easy to start by simply loading the 18V LXT Lithium-Ion Battery and powering on. It has zero emissions and reduced maintenance: there's no engine oil to change, no spark plug to replace, no air filter or muffler to clean, and there's no need to drain the fuel for storage.With the Makita Outer Rotor Brushless Motor with direct-drive system, users get high power efficiency. The DUC356Z provides power equivalent to a 22cc gas chain saw. The chain saw provides up to 150 cuts in 2x2 cedar with an 18V LXT 4.0Ah Battery (sold separately).Features include Torque boost mode to cut through dense material. Other convenience features include adjustable automatic chain lubrication, captured bar nut and lateral chain tensioning for convenient operation and maintenance, large oil filling port with view window, and more.Its part of Makitas expanding 18V LXT System, the worlds largest cordless tool system powered by 18V lithium-ion slide-style batteries. Makita 18V Lithium-Ion Batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger.For improved tool performance and extended battery life, Makita created Star Protection Computer Controls. Star Protection is communication technology that allows the Star Protection-equipped tool and battery to exchange data in real time and monitor conditions during use to protect against overloading, over-discharging and overheating. For increased versatility, the tool can also be powered by Makita 18V LXT and Compact Lithium-Ion Batteries with the star symbol on the battery indicating Star Protection inside."