The latest victims of the DeWalt 20V to Ryobi 18V battery adapter : r/Tools
Amazon.com: Devrig Battery Adapter for Ryobi 18V Cordless Tools, Convert DeWalt 20V MAX XR Lithium Ion Batteries to Ryobi 18v Battery with 5V 2.1A MAX USB Charge Port-US Stock : Tools &
Dewalt to Ryobi battery adaptor - YouTube
For DeWALT Bauer Hercules Li-ion Battery to Ryobi 18V Tools Adapter Converter | eBay
Power Wheels Adapter for Ryobi 18V Battery – Ecarke