@sciconf: “Anybody knows about Walmart’s EverStart Maxx Lead Acid batt? It has 5yr warranty - ie 18 months more than Costco”
@texases : “I’ve used them (EverStart Max), worked fine for me.”
Since I own 7 cars I know about batteries (buying and using them). Many of my cars are parked for half a year at a time.
I shop for lots of cranking amps, warranty, and price. The car battery warranties have gotten a little stingier as time goes on, but the Wal-Mart Ever-Start Maxx batteries (northern version) have given me very good service over many years. They have amp and cold crank amps exceeding OE requirements. Consumer Reports rates them highly. Price and availability is very good.
Lately the warranty is 3 years Free replacement + 2 years prorated.
I also have had good results with Sears Die-Hard Gold. My Bonneville takes a special battery that isn’t available as a Maxx, so I got a Die-Hard Gold, 1000 amps, 800 cold cranking amps, and a good warranty!
I usually replace batteries at 5 or 6 years and have never had to warranty one. When they retire they are relegated to boat or tractor detail. I usually keep 1 or 2 spares charged up to jump start friends’ or relatives’ cars or to gift to somebody stranded.