VANON P102 3.0Ah 18V Replacement for Ryobi 18V Battery Lithium Ion P108 P103 P104 P105 P107 P109 Compatible with Ryobi 18-Volt ONE Plus Power Tool Batteries 2Pack - Amazon.com
RYOBI ONE+ 18V Lithium-Ion 4.0 Ah Battery (2-Pack) and Charger Kit PSK006 - The Home Depot