To take this a little further: if I run one of my Flyer 300 steamers (no smoke or "choo choo" sound), it runs great (smooth and quiet) on AC. If I use a DC pack, it does sound quieter, but it seems like the difference is that the reverse unit doesn't seem to be "buzzing" slightly, like it does on AC. This applies to my other 300, as well as my 310...is this possible, or is it just me? 🙂 I would think the reverse unit would react to either current, whether AC or DC... 🤔
Mark in Oregon