The 18 month old Everstart Maxx battery with 3 year replacement and 5 year warranty in my truck was acting suspect. Walmart was busy but they told me if I took it out they could check it right away. I removed the battery in 100 degree heat and took it inside. They hooked it to the little machine inside and after a couple minutes said it was good. I put the Battery back in my truck and left. I had my alternator tested and it was fine so I thought it must be a starter going bad. Took the truck to my mechanic. Next morning he calls and says it’s the battery. Shows me it drops to 9.3 volts under load. Take the battery back to Walmart and tell them to load test it. They take it to the back and bring a little slip back showing the voltage and the amps are fine.
I ask for the automotive manager. She takes it back to the machine and repeats the test twice more with same result. Ask me to leave it a couple hours so she can check again for a voltage drop. I returned a couple hour later and same story. I took my battery and bought a new one at Autozone. Now everything is fine except my wallet is much lighter after buying a new battery and paying the mechanic. Walmart battery testing is a joke. I will never buy another battery from Walmart or anything else if I can help it.