Batterty Isolators - Is there a consensus?
There's another thread on battery isolators, and here is a quote from that thread on testing a diode type isolator: "Should be around 14 at the outer lugs and around 14.7 at the B+ lug" Presumably, ...
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KJINTF wrote:
What caused them to die?
That's my question. I assume Mex wants me to measure voltage drop across the relay contacts to see how bad they have gotten in 40 years. I'll do that eventually, but I pulled my batteries for the winter last weekend.
What voltage drop would be considered too much? At what charge amperage?
I don't like to let the house batteries run down for long, so while camping, I tend to keep the charge up with gen charging. I'm optimized and balanced so that I can usually get back to 90-95% SOC every couple of days with normal gen usage to run the WH and the microwave.
I tend to think of the constant duty relay as primarily serving the purpose of making it easy to start the engine by adding in the RV batteries, not as a means to recharge the RV batteries while driving.
