Running a second battery and installing my new stereo stuff as well. Trying to work wiring in the budget. I realized this part wasn't going to be cheap but I don't want to spend more than I need to. One of my batteries is in the back and the other one is going to go in the observers compartment. I'm using a perko. Can I get by with 4 gauge to wire the second battery or do I need to go all the way down to 0/1? The alt that I am running is a 90A or 105A I can't remember which. I was going to have 0/1ga come of the second battery to a distribution block (Nice streetwires one that Mikiski recommended) and 4gauge from the distribution block to the amps. Boils down to can I use the 4 gauge for the second battery or not?
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