Dca1820 Dewalt 20V Battery Adapter For Dewalt 18V Tools Compatible With 20V Max DCA1820 Dewalt 20V Battery Adapter for Dewalt 18V Tools Compatible with 20V MAX XR Lithium Battery DCB200 DCB201 DCB203 DCB203BT DCB204 DCB205 DCB206 Extended Tool Life: Allows you to continue using your reliable 18V tools even if their original batteries are no longer available, effectively extending the life of your tools. Cost Savings: Eliminates the need to buy new tools by making your existing 18V tools compatible with 20V MAX batteries, saving you money. Improved Performance: Enables the use of modern 20V MAX batteries, which often have better performance, longer runtime, and faster charging compared to older 18V batteries. Convenience: Simplifies battery management by allowing you to use one type of battery across multiple tools, reducing the need to carry different chargers and batteries. Versatility: Increases the versatility of your tool collection, as you can interchange batteries between 18V and 20V MAX tools using this adapter, making your work more flexible and efficient.