Byron, thanks for your reply.
It turns out my Scamp
is equipped with a Centurion 3000 convertor. It lacks the duplex outlets you mention.
Instead, it has four 12v circuits exiting the back of the unit, with a 5th red wire circuit which goes to the battery. It also has two 110v circuits off the back.
I've not opened the case up to examine the internal circuitry, but my concern is that if I simply attach a stand alone charger to the battery, it will be competing with the Centurion unit. And conversely, if I disconnect the red wire from the Centurion, then the battery will be unable to power the 12v circuitry.
This is the reasoning that led me to consider placing a switch in line with the red wire battery circuit.
- When I'm plugged into shore power the switch will be off, isolating the battery from the Centurion unit, while the charger circuit will be live, with the charger plugged into a 110v outlet which I'll locate in the electrical
- When I am off shore power I'll turn the switch on, routing the battery through the Centurion to power the 12v circuits.
Recognizing that my understanding of electronics is limited - am I over complicating the issue?