The black and decker gkc3630l20 cordless chainsaw is powered by a lithium ion battery for fade free battery power and offers approximately 560 x 35cm cuts per battery charge it has a light weight design for easy use and manoeuvrability and a tool free chain tensioning system for quick and easy chain fitting and adjustment the chainsaw has improved ergonomics with an optimised balance and comfortable bale handle for greater comfort it is fitted with a simple leak free oil system with automatic ch