Reply to "Amp Gauge waving like a beauty queen in a parade"

Try a 10 ohm or 27 ohm 1/2 watt resistor across the two terminals. I would also add an 80 amp in line fuse for added protection. All you really want the thing to do is lean to positive or negative to indicate charge or no charge. The amount is not that important. Resistor values will vary. I don't remember what mine was. it might have been 47 ohm. but a few from radio shack should cover it.