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Topic: 8D AGM, O'Rielys - 4.2V Resurrection (Read 411 times) previous topic - next topic

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  • fouroureye
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8D AGM, O'Rielys - 4.2V Resurrection
So in hot humid FL, keep airflow
Left the Cool O Matin on accidently, thought solar switch was on :headwall:
7+ day of rain ...oh oh..  :facepalm:

Talked to Steve at ORielys, he says hit it with high amp 30A 4+ days in a row then float..

I have no power in storage......

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Re: 8D AGM, O'Rielys - 4.2V Resurrection
Reply #1
Long term de sulphate electronic may bring it back

  • fouroureye
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Re: 8D AGM, O'Rielys - 4.2V Resurrection
Reply #2
Bob, it's back..

100%??

I am leaving the solar on...it gets 35-50A bulk at full sun then backs dowm

Re: 8D AGM, O'Rielys - 4.2V Resurrection
Reply #3
You can charge it back to 100%.  Rate of voltage drop at a discharge rate is the capacity reduction that occurred.

The desulfurization should be able to bring it back I understand.

  • fouroureye
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Re: 8D AGM, O'Rielys - 4.2V Resurrection
Reply #4
Bob, so keep it on solar would do it? Or charger

Re: 8D AGM, O'Rielys - 4.2V Resurrection
Reply #5
Sure.  The little pieces attach directly to the battery's at the battery.  Send a pulsed tiny signal through the battery's right there.

Powered by the batteries themselves.  Tiny current draw. 

Re: 8D AGM, O'Rielys - 4.2V Resurrection
Reply #6
Caflashbob is referring to a Desulfator, an electronic device which costs about $25 on eBay, but you need one for each battery.
I have used them on each of my three 8D AGM batteries for years and even built them before they were commercially...

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  • fouroureye
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Re: 8D AGM, O'Rielys - 4.2V Resurrection
Reply #7
I had no idea.. solar could do all this ^.^d

Thanks Guys

Re: 8D AGM, O'Rielys - 4.2V Resurrection
Reply #8
I have a schumaker ship and shore portable 15 amp speedcharger with desulficaton for at least 10 years. My success rate on totally dead batteries is about 2 ot of 3.

Re: 8D AGM, O'Rielys - 4.2V Resurrection
Reply #9
I have a Schumaker 10A brute force charger, and all I want to add to the conversation is this:

When a lead acid battery is fully discharged, no voltage, there are no ions in the water to conduct electrons from one plate to the other.  Patience is...

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