I just got a new interstate battery from Costco...quick and easy.
I won't go into all of the issues my brother was having with his Jeep GC. He then bought an Interstate from Costco. The problems got worse. Some places he went too to test the battery said the new battery was good, others said it was bad. Finally, he went to an electric specialty shop, they told him they stopped selling Interstate batteries after the production went to China as the batteries were failing consistently, and that his was bad.
He took it back to Costco. Went to Walmart, got their best battery and all of the issues he was having cleared up.
FWIW, I have been using Walmart's best batteries for more than 20 years and had one that was 11 years old when I replaced it.