Here’s the Optima I had to buy to make it through the autocross. This stupid thing cost more than an entire season’s entry fees! At least I will keep it charged and it should last a good, looooong time. (The el cheapo NAPA battery in the car had been powering various projects and derelicts for 6 years, so I can’t complain too much).
Notice the new alternator snug in it’s brackets and the new voltage regulator as well.