RussB has a point about the current and voltage directions. Because it is a DC circuit BUT no polarity markings are shown on the Ammeters and Voltmeters, then we can only calculate the relative size of the currents and voltages (the size of the voltage and current vectors, but not the direction). I think we can assume that the ammeter and voltmeter leads are probably connected to read the same direction, and most likely will read positive values. We know that A1 reads a +4 Amps, and V2 reads a +36 volts, so most likely all the other instruments are also connected to read upscale or positive.
That 116 volt battery must be one more rare device. I don't think I have run across one of those. I guess you could use two 48 volt forklift batteries and two 12 volt car batteries all in series to get close enough (or for 4 amps, maybe six 20-volt lithium ion tool batteries in series).
