The 12V MAX* 3.0Ah Lithium Ion Battery provides additional runtime for our 12V MAX* tools, with 50% more capacity than the DCB122 2.0Ah battery. It includes the fuel gauge LED charge indicator, making it easy to check if your battery is ready for the job. This Lithium Ion Battery is compatible with all DEWALT® 12V MAX* tools and includes a 2-year limited warranty.