joe morreale

I have a Duracell agm battery in my car. Without looking it up I'd say it's 4 or 5 years old. The car seems to start ok, but I don't want to wait until I break down. The battery is showing 12.6 volts in tuner studio, with the car not running. Is it time to go battery shopping, or is that voltage acceptable?

Z_WAAAAAZ

12.6 volts is good, and the most voltage you’ll usually see out of any battery with the car not running. That being said, doing a load test with a proper battery tester will tell you more than just the key on engine off voltage will.

I think autozone or the like have battery testers you can borrow or use in the parking lot.

DNMakinson

iTrader: (3)

My cranking RPM is slowing down with my 6 YO battery. I ordered an Interstate today for peace
of Mind. Their P/N is MT-MX-5. 😃

cngodfather

I buy my batteries through Costco. They sell Interstate. Great battery for a good price.

cngodfather

I also agree that a good battery load tester should be used to test the battery.