Upgraded Version: This Adapter Is Compatible With De Walt 20V Max Batteries, And Also Compatible With Hercules 20V Max Batteries. Providing More Convenience And Cost-Saving Benefits. | | Power Tool Battery Adapter: The Adapter Allows You To Convert Your Existing Batteries To Work With Bauer 20V Max Power Tools, So You Can Use The Bauer Tools Without Having To Buy A New Battery. | | No Charging Function: De Walt Batteries Or Hercules Batteries Cannot Be Charged By The Adapter; Batteries Cannot Be Charged In A Bauer Charger By Using The Adapter. | | The Package Includes: 1 Pack Of Black Adapter Is Included. Battery And Power Tool Are Not Included. | | Secure To Use: Simply Slide The Battery And Power Tool Into The Adapter, The Clip Mechanism Will Ensure You Use Securely Without Movement. | | |