DC-DC Charging ?
When you add a DC-DC charger from the truck as in several threads about that, does that put the house batts in parallel with the engine batt? (as with normal "alternator charging" via 7-pin) Or is...
Forum Discussion
BFL13 wrote:While I agree that the break away switch should be an unfused run from the trailer battery, (and mine now is), my trailer came with the break away switch connected to pin 4 of the 7 pin connector. Maybe this is allowed in Canada?
Keeping the charger to house battery wires short will help preserve the charger's voltage settings for each type of battery as instructed in the manual for using the dip switches.
Voltage variations on the longer run from the unit to the starter batt should be taken care of by the unit's buck/boost as I understand it.
You could make the unit portable by using MC4s on its input and output wires?
EDIT--the breakaway on a trailer puts the trailer's brakes on right from the trailer's batt (not to be fused), nothing to do with the 7-pin.
