What's the oldest working battery you have?
 

What's the longest working battery you've had?



My factory Hyundai battery lasted 7 years. Pretty good I'd say considering the average life of a car battery is about 5 years.

I still have the original factor battery in my 2004 Accent with a build date of 2003. 10 years old and still going strong!

I got a couple batteries over 10 years old still working. Just hit them with a battery charger every now and then.