Battery discussion

We have 4 race cars in our stable:

All have 1 battery, 12 volt and we run an alternator.
1 has a Red Top Optima (360 10.5:1)
1 has a Yellow Top Optima (408 12:1)
1 has a Napa Battery (410 10.7:1)
My car has interstate Battery AGM battery 800 CCA (440 10.75:1)

We don't race near as much as we used to, maybe once or twice a month. Typically, the day before we go to the track, I'll put a charger on the car to make sure the battery is topped off before the race weekend.