Battery Question
One of the first things I did after purchasing a C5 in 2004 was replace the (rather new), name brand wet cell battery for an Exide AGM I had in another vehicle. I did this because back then I was reading almost daily accounts of wet cell batteries leaking in the battery compartment of the C5 and doing significant and costly damage to vacuum lines, the wiring harness and the PCM. That AGM lasted more than 10 years when I replaced it with another AGM, this time an Interstate.
I chose the Odyssey AGM for our C6, because at that time it was the only AGM I could find to replace the (twice replaced) original Delco battery in the C6, Z06. That battery is in a very tight compartment and uses cables that would not accommodate a battery that didn't have the posts in the original positions. Odyssey made an excellent AGM in my view that fit the compartment perfectly and had the terminals in the correct position.
The benefits of using an AGM in the majority of my vehicles, from cars to trucks, Motorcycles and lawn tractors, far outweighs the cost in my personal experience.
The current Interstate battery listed for the C5 Corvette is the MTZ-78. This is the current replacement for the battery in my car, the MT7-75DT (Dual Terminal). I don't know if Interstate offers the dual terminal in the AGM battery any longer. I also have it hardwired with a pigtail to plug in my Battery MINDer.
Good luck... GUSTO
Last edited by GUSTO14; Jun 4, 2021 at 02:33 PM.
The present Optima is getting to be close to 5 years old, now, and I recently set a couple of "check engine" lights, that were attributable to a momentary low voltage situation, so I'm thinking that the battery is beginning to fail, therefore I'm thinking of replacing it, and I'm weighing my options. One thing I'm still set on, is an AGM battery....
Bottom line is I feel that Odyssey batteries are worth the expense.
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