- Sep 22, 2006
- Maybe Wisconsin, maybe near Nürnberg
It would've been much more convenient if both options were available.
I suspect that a standard DC-AC converter, meaning 12VDC -> 120VAC, as plugged in to the aux 12v output plug available in most vehicles, would solve the problem nicely. I normally carry a DC-AC converter under my front seat. Just remember that the converter has to handle the inrush current of the TN40 power supply as well as the steady-state current. and that most DC-AC converters output a stepped square wave, not a sine wave (expensive). the really cheap DC-AC converters output almost a square wave. Oversizing the converter is a good idea. just do not let it run after completion of TN40 charge (or whatever) and thereby discharge the vehicle battery!