one or two batteries?

[Keith 944]

Originally Posted by Jim Caughlin

I totally agree that if you need weight, might as well be a second battery. One piece of advice that I learned the hard way, between races, separate and load test the batteries individually. If one of the batteries goes bad, it will take the other one down with it.

This is absolutely correct!
if you must run two batteries consider running an isolator you could even put a switch inside the car in case one battery goes dead. Hit the switch and you’re up and running.