by bdosborn » Wed Aug 28, 2019 7:04 pm
I'm running it through the trailer connector. The connector is the pinch point as the wire is about a 14#, which is undersized for 20A, much less the 30 or so amps the input pf the DC converter requires. I've got my fingers crossed that it doesn't burn up, but if it does I'll have to run a dedicated wire. I have #6 wire on the truck and #10 from the trailer connector to the DC converter. FYI, I had to up-size the truck wire, it was a 18# stock(??!!!). The trailer connector wire is why I didn't go with the 40A version.
The converter seems to work as advertised, pumping 15-20 amps (depending on the battery state of charge) at 13.5V into the battery. I didn't get a chance to see if it finished the battery charge politely by tapering charge current off at 14.6V. So it seems to work as you would expect and its a must have if you want to charge a LeFePo4 battery from your tow vehicle. FYI, the truck has a 140A alternator so the additional load isn't a problem, I would be careful on a car to make sure your alternator has the capacity required.
Bruce