Battery charging in Cargo trailer
I camp out of a small cargo trailer. Currently have it set up on solar with 2 6 volt batteries. Long story short I am looking for someone with experience charging batteries off tow vehicle that is not...
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The voltage regulator in your tow vehicle prevents overcharge, same as it does for the existing starting battery. You need to add a charge line and probably a heavier ground than what your 4 pin has. That's why they make 7 pin connectors. Get rid of the 4 pin or at least add the 7 pin beside it.
