The RIDGID AC9302460SB 18V 3-Battery MAX Output Starter Kit delivers extended runtime for all day jobsite performance. MAX Output batteries facilitate battery and tool communication unleashing the full potential of any RIDGID 18V Brushless Tool providing more power and more runtime. The RIDGID MAX Output Batteries will provide up to 5X more runtime compared to the 1.5 Ah lithium-ion battery (AC870015). The Advanced Intelligent Electronics in MAX Output Batteries enable users to power through the most demanding applications on the jobsite. The RIDGID 2.0Ah and 4.0Ah MAX Output batteries are compact and lightweight, which reduces user fatigue. As always, these RIDGID MAX Output batteries and charger are 100% compatible with all RIDGID 18V tools. Best of all, this 18V 3-Battery MAX Output Starter Kit is eligible for the Industry’s Only Lifetime Service Agreement, simply register within 90 days of purchase for FREE Parts, FREE Service, For LIFE. The AC9302460SB includes the 18V 2.0 Ah MAX Output Lithium-Ion Battery, 18V 4.0 Ah MAX Output Lithium-Ion Battery, 18V 6.0 Ah MAX Output Lithium-Ion Battery, 18V Charger and operator's manual.