Which Ryobi ONE+ Battery is for me? / Help & Advice
P191 Ryobi 18V Lithium Battery Rebuild Service – MTO Battery
Ryobi P197 Battery ONE + (PLUS) Compatible Replaces P108 Rechargeable Lithium Ion 18 v Volt 4.0 Ah / 72 Wh UL Listed Faster Recharge Single Battery with Fuel Gage - - Amazon.com