The Biswaye 40V 6Ah Lithium Battery Replacement is a high-quality battery designed to match the OEM specifications of Ryobi 40V lithium-ion batteries. With its 40-Volt Lithium-Ion High Capacity 6.0Ah Battery, it provides an extended run time that is 2X longer than the standard 3.0Ah batteries. The battery is compatible with a wide range of Ryobi 40V cordless power tools, including lawn mowers, trimmers, weed eaters, and blowers. It features intelligent protection and stability functions, such as an on-board battery life indicator and built-in circuit protection. The battery is also compliant with FCC RoHS and CE security testing standards. With a 1-year warranty and responsive customer support, the Biswaye 40V 6Ah Lithium Battery Replacement offers a reliable and cost-effective option for Ryobi 40V tool users.