Model # OP4040A1

The RYOBI 40V 4Ah Lithium Battery features up to 2X more runtime than the previous model for an improved user experience. 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.