DM18RL Adapter Converter, Battery Adapter for Dewalt for Milwaukee M18 18V/20V Lithium ion Batteries Convert to for Ryobi P108 18V Li-ion NI-CD NI-MH ABP1801 Battery, with USB Port - - Amazon.com
I was gifted this thing used almost five years ago. I've driven thousands of screws and built over 600 feet of wooden fencing with it and it still runs great : r/Tools
Ryobi vs Milwaukee with (3ah batteries (Impact Wrenches) - YouTube
Milwaukee to Ryobi battery adapter by Surebonder: Modified with low voltage cut-off - YouTube
Mellif USB Battery Adapter DM18RL for Dewalt to Ryobi Battery, for Dewalt 20V for Milwaukee 18V Convert to for Ryobi 18V Lithium-ion Battery - - Amazon.com
Ryobi to Milwaukee Battery Adapter - Surebonder
NEW" Ryobi 18V HP 4 Mode Impact driver VS Milwaukee Fuel Gen #3 impact - YouTube