Greenworks 2000402. Features: Highest voltage in the industry . capable of over 150 cuts with fully charged 2.0 Ah battery (2.0 Ah battery charges within 30 minutes). Brushless motor delivers gas performance equivalent to a 45cc gas powered chainsaw. Digital controlled brushless motor for more torque . quiet operation . and longer life. Steel bucking spikes and durable metal wrap around handle. Electronic chain brake for safe operation. One battery system . multiple tools . professional grade quality and performance. Compatible battery and charger models GBA80200 . GBA80400 and GCH8040. (Sold Separately . Additional high capacity batteries coming soon).