Bill V, a search for the manufacturer of Super Start batteries revealed the following, their words, not mine.

Who Makes Super Start Batteries? - Brand Overview, Top Products & FAQ (autoexpro.com)

The O’Reilly super start batteries are among the most popular ones when you want the best of the best.

The brand started its journey in 1957. Ever since, the brand has developed enormously because of its experience in the automobile business. Now, the question is, who makes super start batteries? In this article, we are going to share the answer with you.
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Who Makes Super Start Batteries?
As the batteries have O’Reilly’s name attached to it, many people think O’Reilly produces these batteries. But the real case scenario is that O’Reilly works just as a supplier, distributor, or marketer.

The history of the manufacturing of super start batteries is a bit different. Johnson Controls Inc. started to manufacture super start batteries in their factory. The brand has multiple manufacturing facilities along with batteries.
They started manufacturing super start batteries in early 2009. Later, the brand was sold to Clarios and got a new name. Clarios is not only a US-based manufacturer, but they are spread worldwide.

East Penn Manufacturing is now the new manufacturer of super start batteries. East Penn is located in Pennsylvania, and they started their journey long ago in 1946. From a one-room shop, now the brand has over 89 warehouses.
And they have already designed over 500 products since the beginning. The brand runs its operations all over the world and has received so many prestigious awards from eminent organizations.

Who Sells Super Start Batteries?
While many confuse O’Reilly to be the manufacturer of Super start batteries, they’re actually the seller. O’Reilly does the job of supplying, distributing and marketing.

You can find every type of super start batteries at O’Reilly auto parts stores. They sell the batteries all over the country. Till now Super Start Battery Manufacturers haven’t mentioned any other seller in the US.

 

Also not a bad deal is AAA batteries if you have that auto club membership. They come to you to replace the battery and the batteries are as good as any other ones...

 

I took out a group 35 napa agm and installed an X2 group 24f agm from Batteries Plus. Expensive to say the least. Why ? I just did and to go larger dual purpose. Now will see how long it lasts. I did get 20 percent off too.

 

2019 SV CC 4L. I'm entering my 4th winter on the stock battery and my truck is parked outside overnight in the Minnesota winter (sub. Minneapolis) about half the time. My truck is my only winter vehicle and I want to replace the battery at 30,000 miles as preventative maintenance. And to gain CCAs.
Thanks for your thoughts.

Use one of these along with synthetic oil if you really want to "gain CCA". I had one of these that I believe came on my Ford Ranger new. I'm north of you, my truck would start outside no problem when -35.