We tow a teardrop trailer, and I am looking to put in a DC to DC charger in the trailer for the new LiFePo I installed. I need to make sure that the charger does not pull more amps than the wire harness rating. The owner's manual says the trailer lights are 10 amp but does not give any information on the other system wires. Does anyone have any ideas?
Looking for the fuse amp rating of the AUX wire in the 7 pin harness
- Thread starter 2024FELC
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That sounds right but I can't answer your question.
It might be an option for you to run a wire from the spare 200 amp lug (under the red plastic cover bolted to the POS batt terminal) install a small gland in the area at the bottom of the "D" pillar (tons of room behind the trim panel) or poke a hole through the existing grommets in the same area and a 2-wire pig tail (with fuse) to power the 12v system in the trailer. With the pig tail terminated at the 7 pin trailer connector, it would be hidden when not in use.
For what it is worth, we upgraded our camper to 3 X 100 lithium batteries and we could not get the 12V to provide any charge. I was just using a cheap solar controller (all the actual 12V chargers for the application seemed to be $150+). I had a few other tests but was almost about to see if I blew a fuse. But I ended up testing with an air compressor that we have for our inflatable kayak that has been rigged with a 7 pin harness instead of a cigarette lighter. Everything worked fine.
At the end of the day I gave up and capped the 12V on the camper's harness. Our batteries are typically charged before leaving and we also have solar on the top of the camper. Our fridge runs off propane (not 12V) so the draw while towing is next to nothing. Additionally, during the day, the solar keeps things topped off.
At the end of the day I gave up and capped the 12V on the camper's harness. Our batteries are typically charged before leaving and we also have solar on the top of the camper. Our fridge runs off propane (not 12V) so the draw while towing is next to nothing. Additionally, during the day, the solar keeps things topped off.
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