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Old 09-22-2016, 12:58 PM   #21
Learning a lot as I go...
Join Date: Aug 2015
Posts: 211
Whether using the disconnect is a problem or not... depends a lot on the converter. Years ago I tried powering a car stereo off a battery charger. Did not work very well as the power from the charger was not very clean: it had the A/C 60 cycle humps in it. This caused a hum through the stereo which was eliminated by having a battery in the circuit.

Electronic stuff has advanced a lot since then but I could still see the battery providing the ultimate power filtering in a converter system. I could also see a converter that was trying to be smart only powering up the 12V side if a basic voltage was present.

That said, simple converters may put out a higher voltage than a fully charged battery needs since they also try and charge the battery (which *does* require the higher voltage). And in this case disconnecting the battery would help.


2015 Rockwood 2604WS (sold as 2016)
2014 Ford F-150 Ecoboost
stevejahr is offline   Reply With Quote

battery, battery disconnect, drain

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