Features: Through the converter, the 20V Dewalt lithium battery can be converted to 18V nickel, can be used instead of nickel, Compatible with most DEWALT 18V tools and allows the use of 20V MAX compact batteries. The DCA1820 adapter is designed for use with Dewalt 20v MAX XR lithium that runs older 18V tools. Replace old Dewalt 18V Ni-Cad batteries, DC9096 DC9098 DE9039 DE9095 DE9096 DE9098 DW9095 DW9096 DW9098. The DCA1820 adapter does not work with Dewalt 12V and 20V/60V FLEXVOLT batteries. This adapter does not need to be charged. (Please remove the adapter before charging the battery) Advanced technology, using advanced spot welding machine, automatic internal resistance meter, automatic battery sorting. Compatible with Dewalt DCB200 DCB201 DCB203 DCB203BT DCB204 DCB205 DCB206 batteries. Specifications: Material: Plastic Model: DCA1820 Type: Battery Converter Adapter Rated Current: 2.5A Ambient Temperature: 25 degrees Compatible for Dewalt 18V/20V Lithium Batteries Item Size: 106*95*86mm / 4.17*3.74*3.39in Item Weight: 149g / 5.26oz Package Weight: 195g / 6.86oz Package Size: 120*110*90mm / 4.72*4.33*3.54in Package List: 1 * Battery Adapter 1 * User Manual