Batteries, an alternative

[Phildan]

Odyssey:

ODYSSEY is NOT a gel cell. It is an absorbed electrolyte type battery, meaning that there is no free acid inside the battery; all of the acid is kept absorbed in the glass mat separators. These separators serve to keep the positive and negative plates apart.

The key difference between the gel cell and the absorbed glass mat (AGM) cell lies in the fact that in the AGM cell all of the electrolyte is in the separator, whereas in the gel cell the acid is within the cells in a gel form. In fact, if the ODYSSEY battery were to split open, there would be no acid spillage!

And...

Because the ODYSSEY® has no free acid inside the battery, it is covered under the US Department of Transportation (USDOT) unregulated "wet nonspillable wet electric storage batteries" classification and International Air Transport Association (IATA) "unrestricted" air shipments categories. These batteries may be shipped completely worry-free. Supporting documentation is readily available.


Concorde:

Innovative design gives these batteries full aerobatic capability and operability in any position. Electrolyte is absorbed & immobilized in microfibrous glass matt separators, eliminating leakage and plate fatigue from vibration. Construction allows for recombination of hydrogen and oxygen created in the charge cycle, eliminating explosive gasses, corrosive fumes, and the need for routine maintenance. Replaces Manifolded & Gel Batteries.


Seems the same to me but could easily be missing something. They both look like a good idea, but following the very real possibility of me having missed something the Odyssey may very well be better. Would like to know before I need a new battery so maybe someone could enlighten me?!?!