This is a 40V lithium-ion battery charger from Hyundai, model HYCH402, designed for charging batteries of Hyundai's 40V cordless, battery-powered garden machinery range. It is suitable for use with chainsaws, leaf blowers, lawn mowers, grass trimmers, and hedge trimmers. This charger is also ideal as a backup or replacement charger for Hyundai's 80V mowers or any of their 40V garden machinery. It can charge a 40V 2.5Ah battery from empty to full in approximately 80 minutes. For added peace of mind, this battery charger is covered by a Hyundai 3-year platinum warranty. It features fast charging, getting gardening tools ready in about 30 minutes. The charger comes with a 1.8 m cable, perfect for use in a garage or garden shed, and operates with up to 100 W of power, suitable for a variety of demanding gardening equipment.