Installing MultiPlusII / How to Disconnect Factory Charger
- Thread starter Focker
- Start date
Yes, the wiring in my 2021 Ram 3500 is 10 gauge for the 7-pin power circuit, 30amp fuse, and the pigtail on my SOB is also 10gauge for the power. There is going to be some voltage drop, but I have seen my voltage as high in the truck as 14.8v, so it can push pretty decent charge into my LFP batteries while driving.
BryanValRox
Well-known member
Lantley,
In my example the truck is all original as built from the factory. So it was designed for the 30 amp rating from the drawing board.
The key things to remember here are that many things go into the design of a circuit and the amperage it can support.(wire size, length, bundle size, voltage and of course it’s expected demand/load to name a few.)
Also remember that because a circuit is designed for a given rating, it doesn’t mean that the maximum amperage is always present in the circuit.
Amperage is a function of the load being asked of it by a given device.
So for our discussion, the charge line would only have a measurable amperage when there is a load being placed on it.
So at the end of the day, if we use a 30 amp charge circuit as an example, the measured amperage at any given time could be 0 to 30 amps depending on the demand/load being placed on it.
Many variables are involved, so I offer this as general discussion.
You won't get 30 amps, but I am getting 15-20 amps out of it and adds to the solar charge I get as well.