Ryobi P117 One+ 18 Volt Dual Chemistry IntelliPort Lithium Ion and NiCad Battery Charger (Battery Not Included, Charger Only) - Power Drill Accessories - Amazon.com
RYOBI ONE+ 18V 2.0 Ah Battery and Dual Port Charger Kit PSK201 - The Home Depot
This battery won't charge on a regular charger, full explanation in comments : r/ryobi
Have a Cordless Tool Battery Won't Recharge? You Can Fix That.
Have a Cordless Tool Battery Won't Recharge? You Can Fix That.
Rechargeable RYOBI One Lithium Battery Power Tool Packs 18v 4.0Ah 72Wh – Li-Ion Cell Harvesting - The Lithium Guys
How to Fix Ryobi Batteries | Hunker
Ryobi One Plus Battery Not Charging-Easy Fix - YouTube