Amazon.com : Ryobi P193 18 Volt 6.0 Ah ONE+ Lithium-Ion LITHIUM+ HP High Capacity Compact Battery : Tools & Home Improvement
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
RYOBI P107 One+ 18 Volt Compact Lithium Ion 1.5 Ah Battery (Single Battery) - Cordless Tool Battery Packs - Amazon.com