Someone makes these for dewalts. They might for Royobi. https://www.amazon.com/Converter-Inverter-Connector-Automatic-Regulator/dp/B094VW5FPH/ref=asc_df_B094VW5FPH/?tag=hyprod-20&linkCode=df0&hvadid=533371127898&hvpos=&hvnetw=g&hvrand=15694639299290177866&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9033799&hvtargid=pla-1394552987185&psc=1