Test for charging house batt

rickhise wrote:

JaxDad wrote:
Set the voltmeter to DC volts, neg to neg, pos to pos and you should see about 14.5 volts if it’s charging, 12 volts if not charging.

Thanks simple enough.

I’m assuming I could do the same thing to check if
Truck running an power cord for brakes and lights
Is charging as well??

Yes but be aware that there is often long and smaller gauge wires to the RV which will lower the voltage.

A better check is to measure both amps and voltage. I have a DC clampon ampmeter that is simple to use and also measures voltage.