Just curious if you are talking about the basic walmart batteries or the walmart maxx line. I have had pretty good luck with the walmart maxx batteries. The one in our car has already outlasted the original AC Delco factory battery that the car came from the factory with.
And agree on the demands of the electronics in vehicles requiring more out of the batteries in cars these days.
I was talking of WalMart store-branded batteries - but not a specific line there.
I do not buy store-brand auto parts (battteries, air & oil filters, etc.). I always buy the manufacturer OEM parts (GM / Ford / Mopar) for my family vehicles.
Several life-long friends are parts managers at local dealerships (GM & CDJR), so Iím able to get OEM parts (including batteries) at a reasonable price.
Ironically, when I purchased my 1999 Corvette coupe new, the OEM ACDelco battery soon failed, as it leaked acid from one of the side terminal posts, also causing damage below the mounting location. I learned that GM had recently moved production to Mexico, and there was a large batch of defective, side-post ACDelco batteries installed in many new GM vehicles. That has been the only OEM premature battery failure I can recall in 50 years of driving.
PS - I began my first job at age 15 in a ďfilling stationĒ. In addition to full-serve pumping gas, changing bulbs, tires, brakes, etc. - we installed car batteries, which were stored on the rack in dry cell condition - we had to add sulfuric acid to the six battery cells to activate the battery (which came in a plastic bag, packed in a cardboard box with a plastic fill tube line).