ecker:
I ran a test on an 07 EX 4502.
Shore power: PLUGGED IN
Inverter: OFF
Charger: ON
Then switch coach to: STORE
and the charger still charged at the same rate as with the switch on USE as measured at the batteries.
I also tested by unplugging the shore power after being in the above charging config to simulate a power failure and the charger came back on when power was restored.
However, two things are key 1) the shore power must be plugged in FIRST and then 2) switching coach to STORE must be done LAST. I tried it setting the switches as above while on battery power only then switching to STORE and then plugging in the shore power afterwards and there was NO charge. Again, all this measured at the batteries.
I'd make sure to set your "PWR SH" setting on the display panel equal to or less than the amperage of the shore power to make sure the charger will not ramp up enough to blow shore fuse if you are running less than a 50amp shore.
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2007 and 7/8ths Newmar Essex 4502
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