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the battery acts as a reserve and a filter.
leave it hooked up when camping. during periods of high load, when you have everything in the trailer turned on both the battery and the univolt supplies power to the 12v system.
when you turn lights pump fans off the univolt automaticly recharges the battery.
they work together, you will notice the lights will dim less or not at all when motors run.
the univolt should not overcharge a battery, just check the water level on a monthly basis.
the battery minder is good for long term storage.
when you boondock running a generator, and run out of gas, you will not need to stumble outside in the dark if you have the battery hooked up!
john
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