Kyle_in_Tex
Super Star Member
I bought this battery last June, so it is 11 months old. It says free replacement for up to 3 years on the side as it is the Maxx version. It is in my daily driver Impala which I commute 65 miles each way to work and back. It is not a case of starting and stopping and restarting which can discharge a battery.
So the last 3 days I've noticed getting a bit weaker each day as I start the car in the morning. It barely started this morning so after driving 65 miles to work, I let it cool then checked voltages at lunchtime. It measured 12.4v with the engine off. After starting, it measured 14.4v so this tells me the alternator (which was replaced 4 months ago) is good. I checked voltage across the actual battery terminals so this tells me the cabling is good with the 14.4 reading while charging.
When I got to walmart after driving home 65 miles, their tester showed 12.6v and 650 cca. He said he couldn't replace it and I asked doesn't the low voltage mean anything? He said nope. I told him it should be closer to 13.2v and he said sorry, that they go by their machine which somehow checks cranking amps.


I think I know what to do to get another battery out of them but I'll post later to let you guys know the outcome.
So the last 3 days I've noticed getting a bit weaker each day as I start the car in the morning. It barely started this morning so after driving 65 miles to work, I let it cool then checked voltages at lunchtime. It measured 12.4v with the engine off. After starting, it measured 14.4v so this tells me the alternator (which was replaced 4 months ago) is good. I checked voltage across the actual battery terminals so this tells me the cabling is good with the 14.4 reading while charging.
When I got to walmart after driving home 65 miles, their tester showed 12.6v and 650 cca. He said he couldn't replace it and I asked doesn't the low voltage mean anything? He said nope. I told him it should be closer to 13.2v and he said sorry, that they go by their machine which somehow checks cranking amps.
I think I know what to do to get another battery out of them but I'll post later to let you guys know the outcome.