AGM Batteries
- Thread starter pontiacgp
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The terminals never corrode and they never barf acid on your battery tray. Those are the biggies for me. No lead acid mess.
I could never justify the cost. I ran AGM in my bike and they just didn't last. I run Duracell lead acid batteries and have never had a problem. They are even made in America. I don't even bother charging them over the winter and they start every spring. My oldest one is 6 years old and still starts my truck everytime I hit the key.
In our case the Cobalt uses a trunk mounted battery. It has a vent tube that goes out the bottom of the trunk. At the time no one made that battery but AC Delco and it was a Stealership only $300 investment. So I got the Odyssey AGM for half that and never worried about acid fumes in the trunk. By the time the AGM dropped dead Sears offered a Die Hard model for the Cobalt and I got one on sale really cheap. But Sears said it was in stock and it wasn't even within 100 miles of me. Another Sears story for another time. So far so good though. Anyway AGM and gel-cell was developed for aircraft because they can be mounted in any position without fear of spilling acid. But because of the no warning issue they use two for redundancy.
Good thing. If you replace it today, you'd be lucky to get 13 months out of them. I don't know if they fixed their sh*t lately, but there for a while, those were some crappy azz batteries. I wasted too much money on those things.
Optima Red Top in my other G-Body. Keeps my Fi computer happy. Have a Battery Tender for it for the winter. With an ongoing computer memory draw they last about a month before becoming unhappy with the lack of incoming zots. Took about three days for the tender to revive it but went with the slow charge method to avoid issues with using a heavy charger. My old Craftsman is a beast and although the tecks say it is okay it puts out way too much and regularly pops the overload safety meaning it has to cool down and reset before it can try again. Nasty old fossil but the price was right.
Nick
Nick
No terminal corrosion is a big one, leakage isn't much of an issue, usually the battery tray is already ****ed from past batteries. Where are most of these AGM being made? I saw the Parts Master lead acid battery Mom just replaced in her Taurus was Made in the USA.
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