The RYOBI ONE+ 18V Lithium-Ion Starter Kit PSK106SB includes a 4Ah and 2Ah battery, along with a charger, providing reliable power for your tools. With a manufacturer warranty of 3 years, you can trust in the durability and quality of the product. The 18V lithium-ion battery technology ensures long-lasting power, while the green color adds a pop of vibrancy to your tool collection. The included batteries and charger make it easy to keep your tools powered up and ready for use whenever you need them.