Metabo HPT / Hitachi 18v Low Profile Battery Adapter for Bauer 20v Tools | Being Patient
FirstPower Battery Adapter for Makita 18V Lithium-ion Power Tools,Convert Milwaukee 18V or Dewalt 20V Lithium-ion Battery to Makita 18V Lithium-ion Battery - - Amazon.com
Amazon.com: Laimiao Battery Adapter for Craftsman 20V Cordless Tools,DM18MAN Adaptor for DeWalt 20V and for Milwaukee 18V Li-on Battery Convert to for Craftsman New 20V Power Tool,Battery Replacement,Red : Tools & Home