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
1x Adapter For Ridgid 18v Batteries To Ryobi 18v One+ Series Tools- Adapter Only | eBay
Adapter (adapter) for battery AEG (Ridgid) 18V to tool Ryobi 18V| | - AliExpress
Ridgid To Ryobi One+ 18V Battery Adapter | Badaptor
RIDGID 18V Lithium-Ion 4.0 Ah Battery (2-Pack) AC87004P - The Home Depot
Adapter for Ryobi 18v Series Tools Compatible with for Ridgid 18v Li-ion Battery | eBay
1x Adapter for Ryobi 18V Cordless Tools Fits for RIDGID 18V Battery (Not Advanced 18V Battery)- Adapter Only
20V Max vs 18V Batteries: Setting the Record Straight - Pro Tool Reviews
1x Adapter for Ryobi 18V Cordless Tools Fits for RIDGID 18V Battery (Not Advanced 18V Battery)- Adapter Only