[Carol99705]

Your charging inputs should go directly to battery.  One set +/- from solar charge controller, the second from a trickle charger or 120v AC to DC converter.  Your first + output from battery might be the main fuse, then a battery disconnect switch.

I have a galvanized steel trailer that will be the ground.  I put a 4 guage ground from battery close to a battery box up front.  Then another grounding block (to a separate frame ground) for all the 12v things.  One 4 guage positive runs rearward for pwr to a fuse block, and a 1200W inverter.  I am going to use shore power to charge the battery, and with a split cable also run a little AC dometic freezer in the car.  On the road, the same freezer will tap off the inverter.

If this sounds feasable, I can draw up a diagram, then photos later.

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