Short Wave Sportfishing wrote in
:

Do you know if AGM batteries suffer from desulfation?

I've never read anything that says yes and I honestly don't know.



Rolling up thin lead plates between sheets of fiberglass gauze soaked in
dilute sulfuric acid has not one iota to do with changing the chemistry
involved with the same ol' lead-lead-acid battery from the 1900's. When
ANY lead-acid battery discharges, lead sulfate IONS (we hope) results and
(we hope) remains in suspension long enough for us to get around to
recharging it before too many of the ions bond into lead sulfate
crystals.

What IS different about AGM and gelcell batteries is the inability of the
lead sulfate crystals that will always form, sooner or later, from
precipitating out of the battery area between the plates falling with
gravity into the provided space for them in the bottom of a wetcell. The
electrolyte in an AGM/Gelcell is trapped and cannot move by convection or
gravity, so the lead sulfate crystals formed stay in the business-area of
the battery between the plates. The inability to make minor specific
gravity adjustments...or even measurements...makes you pretty helpless to
compensate for this BASIC CHEMICAL FACT that gets lost in the brochures
and ad hype.

I must complement the battery manufacturers in convincing consumers that
AGM and gelcells are something extra special, allowing the suppliers to
jack up the prices to amazing levels to maximize profits.

They ARE NOT SPECIAL! They are the same old lead acid batteries in a new
container.

Larry
--
Halloween candy left over.....
Is there a downside?