RYOBI introduces the 18V ONE+ HP HIGH PERFORMANCE Lithium-Ion 6.0 Ah Battery (2-Pack) with FREE 2.0 Ah Battery (2-Pack). These RYOBI 18V ONE+ Lithium-Ion HIGH PERFORMANCE 6.0 Ah Batteries provide up to 6X more runtime, 30% more power, and run cooler compared to our standard lithium-ion batteries to provide long-lasting reliability and better performance in over 300 ONE+ Products. These HIGH PERFORMANCE batteries also feature the most advanced on-board battery electronics that monitor voltage, temperature, and current to extend the life of the battery. These RYOBI ONE+ 18V Lithium-Ion 2.0 Ah batteries provide up to 1.5X more runtime compared to our 1.5 Ah standard lithium-ion battery. Best of all, they are a part of the RYOBI ONE+ System of over 300 Cordless Tools that all work on the same battery platform. Backed by the RYOBI 3-Year Manufacturer's Warranty, this set includes an 18V ONE+ HP HIGH PERFORMANCE Lithium-Ion 6.0 Ah Battery (2-Pack), (2) 2.0 Ah Compact Batteries, and an operator's manual.