This is where I am right now...
My plan is to install my disconnect/transfer switch inside the box between the batteries. I am also planning on installing my shunt on the inside/backside of the box.
Couple questions.... My interconnect cables are 2/0. I have some 4awg that should be here tomorrow. Should I use the 2/0 to run my positives to the switch or can I use the 4awg? I know they need to be the same length.
Same for the negative... My plan is to run it to a common post inside the tool box and then have a single ground exiting the box and tying into the frame where the existing ground is. Can I/should I use the 2/0 or will the 4awg be sufficient? Do the negatives off the batteries to a common post need to also be the same length?
Right now I do not have a ground coming from the converter/charger to the batteries. When I open up the belly to replace the 8awg with 4awg, should I also run a ground up to the box and tie it into the common ground inside the box?