Stanley Fatmax SFMCCS730M1 chainsaw Version with power supply set consisting of 4.0 Ah battery and charger, Option to share battery and charger with other tools from the Stanley V20 series, Lock-on switch for increased safety and comfort, Efficient brushless motor that optimizes battery power runtime, 30 cm long blade for high cutting performance, Transparent window in the lubricating oil tank, battery and charger included.