Power your entire RYOBI 18V ONE+ collection with longer runtime and enhanced performance using the RYOBI 18V ONE+ 4Ah Lithium HIGH PERFORMANCE Starter Kit. INTELLICELL battery technology features advanced electronics allowing batteries to last longer, think smarter and deliver up to 30% more power. The COOL-CORE design reduces temperature to optimize battery performance and extend battery life. Advanced lithium cells maximize performance and runtime during demanding applications. The robust design and anti-vibration technology increases durability and enhances your overall experience. This battery features a high visibility LED fuel gauge to clearly indicate remaining runtime. Easily install and remove the battery with secure quick-release latches. Pair this Lithium HIGH PERFORMANCE battery with any 18V ONE+ HP tool to leverage high performance brushless motors and advanced electronics for more power, longer runtime and the overall best experience on the 18V ONE+ system. The included charger is compatible with all RYOBI 18V ONE+ batteries, making it easy to power your collection of tools. Power all 300 ONE+ products with any RYOBI 18V ONE+ battery. This 18V ONE+ 4Ah Lithium HIGH PERFORMANCE Starter Kit is backed by the RYOBI 3-year manufacturer’s warranty and includes (2) 18V 4Ah Lithium HIGH PERFORMANCE Batteries, Charger and Operator’s Manuals.