Quote:
Originally Posted by Eddles
No idea. Didn't think too hard why they insulated the battery. Can't guess why.
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I know the reason for that!
A clean battery will last a lot longer than one exposed to dirt and grime. One of the main causes of battery failure is dirt covering the surface and effetively slowly shorting it to death. A constantly discharged battery will eventually die, but one that is kept clinically clean, and also incidentally, protected from temperature extremes, can last the life of the car.
A friend of mine had a late 90s Pontiac Bonneville where the battery was kept in a storage compartment under the back seat. It was kept clean and insulated, and it was the OEM original battery. He said he's never had any issues with it!