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| behtar_raza |
 Posted: Mon Jun 30, 2008 10:56 am Post subject: Lead Acid Batteries |
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Forum Freshman
Joined: 30 Jun 2008
Posts: 1
Location: Karachi , Pakistan
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| Can anybody tell, apart from checking SG and Voltage, is there any good way of detecting a bad or dead cell in a 12V L.A.Battery. What is the chemical formula of liquid battery equalizer. |
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| Zwolver |
| Posted: Mon Jun 30, 2008 2:55 pm Post subject: |
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Forum Senior
Joined: 17 May 2006
Posts: 352
Location: Netherlands, Limburg, Ospel
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The best way is to measure the voltage. If it is less then 12 volts, then you have a dead cell. Most of the times this is a rupture in a conductor, and that shouldn't be to hard to repair. But i am telling you, DON'T open the battery, just buy a new one.
Also, the number of lead particles in the battery may give an indication of wich one is depleted.
I think you can use a concentrated and straight lightbeam, and see how much it bends trought the cell. If lead is dissolved in there, there should be a slightly sharper bend there.
I have no idea what the formulae is, and i don't even know right now if a full battery has all it's lead dissolved or stuck to the plate.
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~Zwolver... |
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| Harold14370 |
| Posted: Mon Jun 30, 2008 4:42 pm Post subject: Re: Lead Acid Batteries |
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Forum Professor
Joined: 13 Apr 2007
Posts: 1769
Location: Pennsylvania
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| behtar_raza wrote: |
| What is the chemical formula of liquid battery equalizer. |
According to the MSDS, it's cadmium sulfate. Probably a little bit of snake oil in there too. I am somewhat skeptical because I never heard of such product before. |
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