This item is sold as a kit which includes the battery. The Ego power chain saw truly delivers power beyond belief. The 16 in. bar and chain, combined with a hi-efficiency brushless motor provide smooth cuts. The brushless motor extends the life of the tool and the run time. The advanced Ego power+ 56 Volt battery uses industry-leading arc-lithium technology to deliver power beyond belief and is compatible with all Ego power+ products. The Ego power+ chain saw delivers the performance of gas without the noise, fuss and fumes. Factory Certified Reconditioned. 16 in. Oregon chain and bar are optimized for smooth cuts High-efficiency brushless motor puts out 6800 RPM Weather-resistant for use in light rain and cold conditions Included 5.0 Ah battery is compatible with all Ego power+products High-efficiency brushless motor offers longer run time per charge and prolonged motor life Equipped with chain kickback brake for added safety and control