Trailer Electrical Ground/Frame and Solar
The negative terminal of the battery goes to the frame via 6ga wire. And I think the AC ground goes to the frame when we're not off-grid. I'll wire the MPPT controller with two 6ga wires going to...
Forum Discussion
Hi,
I would recommend a #10 wire from the MPPT controller to the chassis or to the battery, your pick. Actually #12 will work fine too, as the current going through it will never exceed about 1/10 amp, but never can exceed 10 amps, much less than the wire is good for. I would be running #6 wire to the battery for both +12 and -12 wires. It is not that much more expensive than running just the one wire. And you have less resistance with copper wire than with steel chassis.
Good luck with your installation.
Fred.
I would recommend a #10 wire from the MPPT controller to the chassis or to the battery, your pick. Actually #12 will work fine too, as the current going through it will never exceed about 1/10 amp, but never can exceed 10 amps, much less than the wire is good for. I would be running #6 wire to the battery for both +12 and -12 wires. It is not that much more expensive than running just the one wire. And you have less resistance with copper wire than with steel chassis.
Good luck with your installation.
Fred.
