RYOBI 18V ONE+ (2) 4.0 Ah Lithium-Ion Batteries with 18V Charger PCL104K2N - The Home Depot
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