DEWALT DCA2203C Battery Adapter Kit, 18 to 20 V Input, 2 Ah, Battery Included: Yes

Allows for use of 20 V max batteries in most DeWALT® 18 V tools. Adapter requires the use of 20 V max chargers. Adapter will not fit in DeWALT® 18 V chargers. Includes one 18 V to 20 V max adapter, two DCB203 Max XR® Lithium-ion batteries (2 Ah) and one 12/20 V max charger.