Quote:
Originally Posted by Tyler2you
So, just connect both the pos/neg cables straight to the battery?
Why all the grounding on the DC side when it's installed in the RV? Is it because power from the batteries is connected to the converter all the time and you may not be connected to a shore ground?
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I've done this before, and if you have a modern converter with the correct charging parameter for your batteries you should be fine.
As already said, make sure that you connect to the batteries correctly. Also, connect to the batteries first, before plugging in the converter.
The grounding situation? My take is similar to what's been mentioned in ensuring that a solid connection to the chassis is made for any devices using the chassis as a 12v- connection. Plus, on a moving vehicle like a trailer having the external grounding lug also serves to protect the 120vac side of things. The converter manufacturers have no way to know what trailer it's going to be installed in, and many will have deficits with their 120v outlet grounding. By having a designated ground lug they cover all bases.