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
18V 3Ah 6Ah 9Ah For P102 P107 P108 RYOBI One+ Plus 18V Lithium Battery & Charger | eBay
18V ONE+™ LITHIUM+™HP 6.0Ah High Capacity Battery... - RYOBI Tools
Power Tool Battery RYOBI RB18L60, 18V, 6Ah, Li-ion | eBay
6AH For RYOBI P108 18 Volt One+ Plus High Capacity Lithium-ion Battery Charger M | eBay