No, that is not what I said. And it is not correct- flooded cell, gel cell, AGM and 'fakey' AGM batteries all use the same chemistry, lead- acid.
What I said was that any "AGM" battery that comes with separate acid that the user installs is not the same technology as a true AGM battery. It is nothing but a flooded cell battery with glass mat between the plates. AGM batteries behave the way they do not because of the mat, but because the mat allows the use of so little acid.
By the way, one of the big benifits to AGM batteries is that they do not self- discharge nearly as fast as flooded cell batteries and have extremely long shelf- lives. And again, because of the construction mechanism, not the chemistry type.
Again, I am merely pointing out the difference so that anyone can see what is going on here. By all means, purchase and use whichever one(s) you want. My only goal was to shine a little illumination onto what the differences in the battery types (again, not the chemistry but rather the construction and resulting behavior).
Brian
So you're saying that wet, gel, and AGM are not all versions of a lead acid battery? Or that different manufacturers
are using the term AGM differently? From what I know, a battery can either be factory-filled, or BS
(Bottle Supplied), but BOTH are considered maintenance-free once the acid is installed.
The given reason for the bottle supplied units is for indefinite storage of the new, unused (air tight sealed cell) batteries,
whereas the factory filled batteries will lose their charge while warehoused for a duration.