SCwood wrote:I'm not entirely sure, but I don't think a dc circuit has a ground like an ac circuit does. I'm thinking about it like a car- the negative lug of the battery is attached to the frame and the positive terminal is routed to a fuse block. From there you can attach an accessory like a radio by running a positive wire from the fuse block to the radio, and then grounding the radio to the frame. When you turn the radio on the current runs through the radio, the frame, and back to the battery
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I don't know I grounded my battery to my frame and my converter to my frame. It all works - so maybe it's right and maybe it's wrong but it works. I also used a grounding bus bar and a terminal bar.
I read another post and poster claims a battery is needed with a converter to use 12v - I'm thinking why have a converter? I've torn down many trailers and they didn't have batteries. So I talked to a former RV dealer, and he told me they would work without a battery. So I'm thinking why wouldn't a new one. I went out and disconnected my battery and my 12v works without the battery, with shore power. So the converter is converting. Now maybe the poster meant if you didn't have 110 shore power you'd have to have a battery.
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