Product features: With advanced battery technology, no memory effect, and minimal self-discharge, the V20's lithium-ion battery is always ready for use, no matter where you are or where your work takes you. The 20 cm long rail and chain allow for efficient cutting of smaller, hard-to-reach branches. With an extension arm, you can reach up to 4.5 m, enabling you to cut difficult branches while safely standing on the ground. The angled head and blade ensure precise cutting of branches. The chain brake safety mechanism stops the chain in less than a second. The chain adjustment is precise, and an integrated hook allows for secure storage. It is compatible with the STANLEY Track Wall System, a versatile and adaptable storage system for home, garage, or workshop. Part of the new 18 V STANLEY FATMAX V20 battery system – all V20 tools are powered by a common new and improved 18 V lithium-ion battery to make gardening tasks easier. Sold without battery and charger. Technical specifications: Power source type: battery, supply voltage: 18 V, working height: up to 4.5 m, guide rail length: 20 cm, safety brake: yes, chain tensioner: yes, manufacturer: Stanley, product code: SFMCPS620B-XJ.