RYOBI P107 One+ 18 Volt Compact Lithium Ion 1.5 Ah Battery (Single Battery) - Cordless Tool Battery Packs - Amazon.com
RYOBI ONE+ 18V HIGH PERFORMANCE Lithium-Ion 4.0 Ah Battery (2-Pack) PBP2004 - The Home Depot
CEENR 2 Pack P108 6.0Ah Replacement for Ryobi 18V Battery Compatible with Ryobi ONE Plus 18 Volt Lithium Batteries One+ P108 6Ah P102 P105 P104 P108 P109 Fan Leaf Blower Cordless Power