POWERFUL AND LIGHTWEIGHT The WORX WA3747 40-volt lithium battery charger is for 40-volt MAX lithium batteries WA3580. (not included) Charger is compatible with WORX cordless 40-volt tools: WG180, WG280, WG580, WG776 Charges WORX MAX lithium 40-volt batteries in about 8 hours Includes an indicator system for quick battery life review. BATTERY NOT INCLUDED