Expand your RYOBI 18V ONE+ System with the 18V ONE+ 8Ah Lithium HIGH PERFORMANCE Batteries. This 8Ah battery has premium 21700 cells that when combined with our INTELLICELL technology delivers up to 40% more power and up to 8X more runtime increasing overall efficiency. With this battery, you can make over 300 cross cuts per charge on 2x6 yellow pine using our ONE+ HP Brushless 7-1/4 circular saw. Our COOL-CORE PRO heat management system utilizes robust laser welded cell straps and upgraded heat sinks to reduce temperature while in use. This will optimize performance, allowing the battery to run 30% cooler, live 50% longer and deliver fade-free power in all conditions. An added durable overmold increases protection on and off the jobsite. The robust design and anti-vibration technology increases durability and enhances user experience during demanding applications. The high visibility LED fuel gauge clearly indicates remaining runtime. The 18V ONE+ 8Ah Lithium HIGH PERFORMANCE Batteries are backed by the RYOBI 3-Year Manufacturer's Warranty. Charger sold separately.