The Ryobi 40V Lithium-ion Battery delivers the power and performance you need to tackle demanding jobs. This high-capacity battery provides extended run time compared to lower capacity batteries, allowing you to complete more projects without interruption. Its lithium-ion technology ensures fade-free power, maintaining consistent performance throughout the discharge cycle. Compatible with all Ryobi 40V tools, this battery is a reliable and efficient power source for your outdoor power equipment. The battery features a convenient fuel gauge for easy monitoring of remaining charge. Invest in the Ryobi 40V Lithium-ion Battery for optimal performance and extended usability.