Modify Ryobi Charger for Li Battery - Instructables
3RD-Generation Upgrade!】 TenHutt 18V 9.0Ah Replacement Battery for Ryobi 18V Battery ONE+ Plus High Capacity 18V Lithium-Ion Battery P102 P103 P104 P105 P106 P108 P107 P109 for Cordless Power Tools - -
After seeing someone hack up their fan to run 12V, I figured I could use a dead battery shell and make a battery eliminator so you don't have to mod the tool :
RYOBI 18V BATTERY HACK (MOD) | 3D CAD Model Library | GrabCAD
Amazon.com: Ecarke for Power Wheels Adaptor for Ryobi 18V One+ P108 P107 P102 Battery Dock Power Connector RC Toy & Car,e-Bike 12 Gauge Robotics (with Wire Terminals) : Toys & Games