![]() ![]() Otmar: Please tell us again why you think the Exide is the hot set-up.įirst off, you all should know that I tend to use these things 20 at a time, and since they are powering my 914 they see not only high currents but deep cycles as well. The quality control is not what it used to be.įor now I prefer the Exide Orbitals. Yes they work when cracked, but if you don't weld them back up the life becomes shorter. It only takes a little acid loss to hurt them. So if you are mounting them on the side, put the vents up and the terminals lower. They will work for years on the side, but during charging they can leak a little bit of acid, especially if the vents are on the lower side and you charge them over 14.2 or so. Shorter than the 10+ years one can get in starting use. It's not as good to run them on the side, life will be shorter. Yes, I've been using them longer than probably everyone at the factory, since the early days when John Olsen was head chemist. Lots more! But I suspect that a Gel wouldn't mind being upside down at all. Most people don't know the difference, and they are quite similar, the most important difference to me is that you can get more power out of a AGM. Most battery companies will have specs relating to their open circuit voltages at various charge levels, if anyone cares that much. a 100% charged 12v lead acid battery is 13.8v, a 50% charged 12v lead acid battery is around 11.5-12v depending on battery chemistry. (a 100% charged 12v capacitor is 12v, a 50% charged 12v capacitor is 6v. This gives them the high current capability of capacitors, but the desiarable discharge curve of a lead acid battery. The lead plates are thinner, and sandwiched between them are sheets of fiberglass mat soaked in sufluric acid. It doesn't have to be wound in a spiral, Hawker does the same thing with square batteries. "Valve Regulated Lead Acid" and "Absorbed Glass Mat" are names for the technology. They are built like a capacitor, but they are still a lead acid battery. so they don't have to have a lot of venting either.Īlmost right. ![]() A friend used one as an extra battery to run his system, mounted it sideways inside the car covered by custom access panels. they can store large amounts of current, then release it when needed. ![]() I think almost identical to the stiffening caps used in high end automotive sound systems. basically they are just 6 large capacitors wired together. ![]()
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