Forum Discussion
DryCamper11
Nov 12, 2013Explorer
MEXICOWANDERER wrote:
The relay switched the converter in and out isolating the battery when the converter took over duty of powering up the 12 volt system.
I ran with one of these for many years. The only thing I'd add is that the relay that switched the battery in and out often switched only a limited number of loads. A set of glass fuses on the front of this type of converter were divided into fuses for devices that could live with unregulated DC (lights) and items that needed clean DC power (the radio). The former were powered directly from the converter via the relay and the latter were driven from the battery at all times. This type of converter built many a battery manufacturer's fortune as they had to be watched like a hawk and tweaked to prevent damaging the battery. Most new RV purchasers rolled out of the lot, plugged in their new RV and a few weeks later had a dry, destroyed battery.
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