Dual 18v battery adapter for 40v Ryobi tools from JPElectron.com on Tindie
RYOBI ONE+ 18V Cordless 4-Tool Hobby Compact Kit with (2) 1.5 Ah Batteries and Charger PCL1401K2N - The Home Depot
18V ONE+ COMPACT CULTIVATOR KIT - RYOBI Tools
Ryobi 18V One+ HP Brushless EZClean 600 PSI Power Cleaner - PTR
RYOBI ONE+ HP 18V Brushless Cordless 4-Mode 1/2 in. Impact Wrench (Tool Only) P262 - The Home Depot
RYOBI ONE+ 18V Cordless 10-Tool Ultimate Automotive Kit with (1) 2.0 Ah Battery, (2) 4.0 Ah Battery, Charger and (2) Bags PCL2000K3N - The Home Depot
Amazon.com: Ryobi Portable Power Inflator for Tires [NEW DIGITAL GAUGE] [18-Volt] [Cordless] [ONE+ Battery system] [P737D] (Battery Not Included, Power Tool Only)
USB Lithium Rotary Tool Kit - RYOBI Tools
RYOBI 18-Volt Cordless Reciprocating Saw Kit with Battery and Charger (Renewed) - - Amazon.com