Quote:
Originally Posted by T1T2GRE
...but the specific batteries in our vehicles (AGM) are different from your same ol' same ol' and aren't "wet" but a different composition and therefore vent less gas into the vehicle ....
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AGM are also wet lead acid batteries....just in a different configuration. The 'vent' is not the same as in a flooded cell battery and is attached to a safety pressure valve that only opens under certain adverse conditions and not normally open to the atmosphere. I too would like to know what the "coding" accomplishes other than a trip to the dealer.