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No because most if not all of them are made by the same manufacture and rebranded. Go to Wal-Mart and buy a battery they have the best prices and warranty is the same regardless of where you buy it.
Not sure which Group Size we all use in C3s.
Do not buy the most cranking amps you can. The more CCA the thinner the plates inside the battery. The thinner the plates, the more prone to separation from vibration. When that happens, you loose cells / amps. So a better longevity unit will have reasonable CCA, somewhere around 600-700. (Thicker plates)
You can buy junk every 3 yrs. Or buy one excellent battery every 10 yrs.
So, words of wisdom says:
You Get What You Pay For.
Last edited by HeadsU.P.; Sep 18, 2021 at 08:53 AM.
I have an Auto Zone battery in my 76 only because it has a handle for easy installation. Every other battery I've purchased in the last 40 years or so has been form Walnart. Everyone has lasted well past the warranty period with little to no problems. I've always bought the highest CCA's I could find primarily for the cold winter months.A battery carrier tool is practically a must for a C3 Corvette.
A quick Google search indicates that Johnson Controls manufactures 65% of automotive, truck & marine batteries for Ford, Walmart, Chrysler, etc.
That leaves 35% from another source.
Regardless of which color plastic battery case is used or which label is slapped on the side of the case, its the internals that differs in quality and price of a battery.
Hence the reason some are $39.95 and some are $280+. Its the quality of the internals that count on warranty too. That just stands to reason.
People that believe all batteries come down a assembly line awaiting different labels also believe all oil filters get the same treatment.
bs
Last edited by HeadsU.P.; Sep 19, 2021 at 08:04 AM.
I bought an Odyssey battery for my 68 and it sits for long periods without being started. No problems, has plenty of cranking amps for my 427 and I’ve never put it on a battery tender.
You need a 12 volt battery that hooks up to the cables in the car, and fits in the compartment. All this stuff about buying "quality" batteries is made irrelevant when you drive a car 300 miles a year. Even with Battery Tenders,.....the worst thing you can do to a battery is never use it. So no benefit in spending big money on some "special" battery, like these Optima brands. But,.....buy whatever you want. If you drive the car like alot, they will last longer. I don't buy "expensive" batteries thinking they somehow are actually better. I just passed the 6000 miles mark on my 77, since April this year, and the Autozone battery starts it every time.
The stock battery size is I believe a group 74 which is 10 1/4 x 7 1/4 x 8 3/4. I have a group 65 battery in mine which is 12 1/16 x 7 1/2 x 7 9/16 - it was the largest one that i could find that would still fit in the box.
A quick Google search indicates that Johnson Controls manufactures 65% of automotive, truck & marine batteries for Ford, Walmart, Chrysler, etc.
That leaves 45% from another source.
Regardless of which color plastic battery case is used or which label is slapped on the side of the case, its the internals that differs in quality and price of a battery.
Hence the reason some are $39.95 and some are $280+. Its the quality of the internals that count on warranty too. That just stands to reason.
People that believe all batteries come down a assembly line awaiting different labels also believe all oil filters get the same treatment.
bs
While maybe true in a few batteries most are just sealed lead acid batteries (SLAB) and that technology is old and not a lot to improve on. The lead-acid battery was invented in 1859.
It's interesting to me that battery technology has not changed a lot over the years. I would have thought by now we would have much physically smaller batteries with the same capacity as those of yesteryear. I'd love to have a battery in my '73 that is about 75% the size of my AGM battery but with the same capacity. With the disconnect switch, junction box, ground junction and various relays I've added over the years, I'd like more wiggle room for replacing the battery when the time comes.