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I rememered someone claimed that the life span after charging by Tesla charger is 5000. I am curious how he can claim that. As it takes about at least 10 to 15 years to test it. How will be the life span of LAB charged by SSG? Will it be the same?
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well like you say it depends upon time. one thng that you can do with a normal battery is calculate its lifespan based on diminishing capacity.... so if your capacity does not degrade, and the plates never warp, and it always is well maintained.....how long will it last? I had Car starter battery it was the original from a 92 honda accord.... just came out of the same car. the cold killed it but it was still starting the car just fine before that.
Tom C
experimental Kits, chargers and solar trackers -
Hi Tom,
Can I suggest to add : plate grid corrosion? to your list of things that can go wrong? It something that always bothered me but is never talked about.
I get the reason to fully charge a battery to passed 15V+ to avoid sulfation. But aren't we moving into an area that promotes plate grid oxidation. And that we are just creating a new problem by solving another?
Does anybody have any thoughts on plate grid degradation over time by repeatedly finishing the charge at 15v plus?
There are a lot of literature documentations about the effect of battery "equalization". The gist of it is by applying a higher then normal final voltage to a battery, some weak cell never make it that high while the good one rest at that high voltage and get their plate grid slowly degrading.
Do you have any thoughts about what wanting to finish at 15.4V does to the plate grid?
NoFearComment
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That is a good point, but dont deep cycle batteries have solid plates, so they would not have a grid? and surely the degradation is caused when plain dc is applied to the battery at over 15v not pulses?Originally posted by Nofear View PostComment
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I remember John Bedini showed some experiments where by using radiant energy the cell plates actually grew - like trees. This was one of the reasons why the battery capacity can increase, in that the the physical surface area of the plates was increasing.
John K.Comment
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Thanks BigMotherWhale and John.K for your response.
Good points, but here's what I have to say: "...the degradation is caused when plain dc is applied to the battery at over 15v not pulses?" I think that it doesn't matter how the battery gets up to 15V, pulsed or steady voltage. With the SSG if the battery voltage rises to 15..16Volts there will be plate oxidation. Unless you guys can show otherwise..
And yes the active surface area does increase when it is charged by pulsing high voltages...but that only translates into higher battery capacity the plate oxidation at high voltage still remains.
I am still wondering if it's good for the longevity of the battery to charge to higher voltage (15.4..15.6V) It addresses the sulfation question but doesn't prevent the plate from oxidizing...and consequently affecting its life span.
NoFear.Comment
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pulse charging will restore a battery faster than anything else, pure DC will not restore at all. I have found that IF you run a NEW battery (flooded lead acid) up to 15.3 its capacity goes up to its rating and stays there. Pure DC can heat up the battery which is why pulse charging on top will do less damage.
to restore a battery it must be pulse charged. once its back to full capacity charging to 15.3 will keep the plates clean. there is not a commercial charger that does this. that is why they do an equalization charge to try and get the last little bit off the plates with higher voltage. usually ends badly..... too much equalization will warp the plates.
Hi John K!!
Tom C
experimental Kits, chargers and solar trackersComment
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