RV Voltages too high while charging
I have a problem and have been wrapping my head around this for a few days. I have four 100w Solar panels, and a Morningstar RJ-45 programmable charge controller wired to batteries. I have Four In...
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Chandalen wrote:
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And LOL on the running the fridge on the 120 to drop the voltage! Yes it would work but i'd be interested in how many DC amps that would draw.
Hello OP. You are not the only one to run into this, my larger inverter also complains about high charging voltages. Its rated range is up to 15V; however, I find it will fault out at 14.8ish volts. I dropped my charging voltage down to 14.4V. My controller does temperature compensation but I have it setup to not go over 14.9V during normal charging in the winter (storage) and 14.4V in the summer (when I'm camping and will want to use the inverter). SG readings suggest that my batteries are doing fine with this strategy. I do a 14.9V "equilization" every 2 weeks because my controller allows me to set up that custom schedule. I don't know if that really helps anything or not and it follows the same temp compensation protocols. I have a 15.4V max voltage output level set on the controller.
I have flipped my frig over to 120V AC while running off the inverter to knock down the battery voltage many times before. My Kil-A-Watt says it is drawing just under 300 watts of AC, so maybe 30A DC?
