Dewalt DCA2203C 20V Max* Battery Adapter Kit For 18V ToolsDewalt DCA2203C Add versatility to your tool box with the 20V MAX* to 18V Battery Adapter Kit. This adapter allows you to use select DEWALT 20V MAX* Lithium Ion slide pack batteries with DEWALT 18V power tools. Features Battery Adapter for Li Ion 20V Allows for use of 20V MAX* Batteries in most DEWALT 18V Tools Adapter requires the use of 20V MAX* Chargers Adapter will not fit in DEWALT 18V Chargers Adapter will not work with 20V 60V FLEXVOLT