RIDGID 18V MAX Output Starter Kit with (2) 4.0 Ah Batteries and ChargerRIDGID 18V 4. 0Ah MAX Output Starter Kit Unlock the full potential of your RIDGID tools with the 18V 4. 0Ah MAX Output Starter Kit. This powerhouse set delivers up to 3X more runtime and 2X more power than standard batteries, ensuring your projects are finished without interruption. Complete with two compact batteries and a smart energy saving charger, this kit guarantees performance and convenience. Key Features: Power Enhanced: MAX Output Batteries