Originally Posted by kipper
So I am looking to install a renogy DC-DC converter in my setup for safe charging while driving from TV to Trailer.
The 7 pin connector ampacity is a little low to use and the renogy also needs a + signal to start the charge (typically from the ignition on). I could leave the charger in the TV and then only need the 2 wires to my battery
but I am not settled on either way yet.
What is the best additional connector system? need possibly 3 wires and 2 of them need to handle 20A (I am looking at the renogy 20A unit).
Like many others you are getting confused with the terminology and meaning and use of the words inverter, converter, charger. Renogy does not make a DC to DC converter.
There are battery chargers that plug into an AC outlet and then convert
it to DC. An example of that is a car charger you plug into the AC wall outlet at your home and then connect to your vehicles' battery.
But a battery charger that is run from a 12v DC source and is used to charge a 12v DC source does not need to do any converting
since both power types are a match. Those are called DC to DC chargers. Calling it a DC to DC converter is incorrect, it is not a converter, it does no conversion. Renogy does sell a DC to DC charger
, but they do not sell a DC to DC converter. They also do not sell a charger that converts AC to DC.