there are only three battery manufactures. The make all the brands you buy.
I believe last time I checked, Walmart batteries are made by same company as interstate. yes some insides are different than others with plate thickness and other items. But in looking at the two they are basically the same plus the warranty- walk right back into walmart and give it back to them no having to test it first or try a charge nothing. I get many years out of them on my fishing boat as well as my pleasure boat. Especially the Deep Cycle ones. usually outlast others for me
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Capt. of the "No Worries"
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