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 ONE+ 150-WATT POWER SOURCE - RYOBI Tools
18V ONE+ 9.0Ah High Capacity Battery - RYOBI Tools
18V ONE+ 9.0Ah High Capacity Battery - RYOBI Tools
18V ONE+ 4AH LITHIUM HIGH PERFORMANCE BATTERY... - RYOBI Tools