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Hi Mike - I like the 12V battery test concept. One question... for those of us with motorhomes, where the CHASSIS battery is likewise connected to the frame, is this still a "useable" test? I am presuming so, since the test lamp is connected to the HOUSE battery, but figured I'd run it by you! Thanks, as always! Scott

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Yes, both the chassis battery and house battery bank will be grounded to the chassis, so either positive battery terminal will provide a test fault current to confirm continuity under load.

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That is supposed to be like.

Also, in the bulb test, since more current is desirable, would it be worthwhile to put 2 bulbs connected in parallel (in some sort of mount for safety), or would that just confuse the voltage measurement?

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Is the Klein RT390 circuit analyzer anything luke/near the ideal?

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Great article Mike. Do you think that while you are at it, that turning on a high draw appliance like an air conditioner or a space heater and measuring the AC voltage ohm the neutral line is a good idea? The voltage between the neutral and RV ground point should be near zero volts AC and there is an issue if it isn’t.

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