Battery

I put a Optima yellow top in my one race car back in 2016 after the battery took a crap. My other car the Mopar Performance battery took a crap this spring after 7 years so I replaced it with a Interstate AGM MTZ-34 battery. The Interstate has 50 more CCA and was a little cheaper than an Optima since my Father In Law is a dealer. I run an alternator on both cars and usually just top of the battery before the race weekend to be sure, but I don't even think that's necessary, but just a habit of mine.