For maximum productivity, don't let your tools run out of power! This set of two Dewalt premium XR Lithium Ion battery packs have up to 60% more capacity than a standard 18V/20V pack. With no memory and almost no self-discharge for a longer run-time, these lightweight battery packs will get the job done. The 3-LED fuel gauge system will give you immediate feedback on the state of charge. These Li-Ion battery packs are compatible with all Dewalt 18V and 20V XR slide tools, so you can power your whole set.