The WORX WG322E.9 chainsaw is powered by a 20V Max battery, offering all the advantages of lithium-ion technology: high capacity, low self-discharge, and no memory effect. Chain lubrication and tensioning are automatic, ensuring optimal chain tension at all times. The soft grip and hand guard provide comfortable and safe operation. A three-meter extension pole (WA0166) is available as an option, allowing for easy cutting of high branches. WORX Powershare – share batteries, save money! All WORX 20V Max PowerShare tools are also available without a battery and charger. Simply use your existing WORX batteries and charger and save money when purchasing new WORX tools!