You are correct, there are only 2 or 3 different actual battery manufacturer's still around. They just slap a different label on the outside for whomever they are building for that particular day.Everstart batteries at Walmart are good a lot of different brand batteries are made by the same manufacture
If it never gets cold where your at, you might be able to get by with one battery. As far as the Everstart battery, we call them neverstart at work. I see more of them bad than good. I use a lot of A/C Delco batteries and they are made by the same company that makes them for my local Autovalue auto parts, but I see more go bad from the auto parts than Delcos. They can be made by the same company but to different standards.I have a 94 and a 06 Dodge diesel trucks, do they really need two batteries? I can 900 cca 3 year battery from WalMart. Opinions?
This is what I really meant and should have said in my previous post. Although there are only a couple of manufacturer's around, they build the batteries to the spec of the company that ordered them and then slap the proper label on for that company.They can be made by the same company but to different standards.