Greenworks, 80V, 4 Ah lithium-ion battery, Charges in 60 minutes, 320 Watt Hours, Digital Charge indicator allows for remaining power readout, Advanced electronic control optimizes performance on the tool and on the charger, Premium lithium-ion power cells for long-lasting performance, Rugged construction for durability, Powers all Greenworks 80 volt products, 4 Year Limited Warranty, for use with all 80v Greenworks products