installing 2nd batt.

[502CEC 10+ year member]

I'm in stalling the extra batt. In the back of my car. My questions are is it ok to ground the batt to the car then ground the amps to the batt or should I bolt them down to the car where the batt is gonna hook up? Next is I have a set of terminals that have 2 0ga inputs, is it ok to come in with power from front batt and hook to 1 side of the terminal then run my amp from the other side of the terminal or should I hook 1 to top post and amp power to the the side post or is it ok to hook everything at the same spot.???

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[bubbagumper6 5,000+ posts]

Yes, ground the batt to the chassis, then ground your amplifiers to the batt, that's fine.

It doesn't matter what configuration you use for the battery terminals, connect the wires wherever it's convenient.