24V Battery Sealed Lead Acid - For 3-in-1 Battery Mower Automotive style battery is easy to remove No Memory Effect Sealed lead-acid battery can be charged at any time Charges Over Night Charge up to 15 hours Battery life lasts up to 250 cycles Compatibility: For use with Greenworks 24-volt cordless electric lawn mowers Will NOT fit Greenworks 40-volt cordless electric lawn mowers Will NOT fit other manufacturer's brand cordless products Charger is NOT included - must be ordered from Greenworks