Battery Voltage drop under load
Is a voltage drop to 12.0V to be expected with a 21.3A load with a fully charged ~216Ah battery bank? I've never loaded the batteries that much before, so really have no idea what to expect. It...
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Vulcan Rider wrote:rjxj wrote:
Normal
But not good.
A 21 amp load on the batteries will discharge them fairly quickly.
This is why most units have propane ref's.
Do I understand it correctly that you have an AC power only ref. and are trying to run it off the batteries through an inverter ??
Not a good arrangement.
Depends :) We have a 3.2 cu ft 120v only fridge in the truck camper that draws about 5 amps when "on" which is maybe 3/4 out of 24 hrs, it varies.
With four batteries and 230w of solar, the batteries kept up nicely in a recent five-day off- grid session with mixed sun and cloud each day.
With one overcast day we would have needed a battery recharge to catch up, and with no generator, that is a nail- biter watching the weather forecast, but if you had a portable gen along, no sweat.
