1X Adaptor For RIDGID 18V Li-ion Batteries To Ryobi 18v Platform Tools | eBay
NTD: Badaptor Ridgid-to-Ryobi adapter didn't want to invest in yet another battery plat, and will save by buying less expensive tools where it makes sense : r/Tools
Battery Adapter for Ridgid 18V Li-ion Battery to Ryobi 18V Series Cordless Tools | eBay