Up to 2X more runtime INTELLICELL battery technology features advanced electronics allowing batteries to last longer, think smarter and deliver up to 30% more power COOL-CORE design reduces temperature while in-use to optimize battery performance and extended battery life Advanced Lithium-Ion cells maximize performance and runtime during demanding applications Robust design and anti-vibration technology increases durability High visibility LED fuel gauge clearly indicates remaining runtime Easily snaps into place and detaches with quick-release buttons Pair with 18V ONE+ HP tools for optimized performance Recharge on any 18V ONE+ Charger Part of the RYOBI 18V ONE+ System