[TechAssist] Re: Any way to revitalize dead sealed lead acid batteries?
- From: Edward Gaidies <teltek3@xxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 28 Aug 2004 18:32:05 -0400
Gary;
Brand New? What's the date on the box?
Lead Acid....notate exactly that. If the Acid has evacuated, by just
drying out, you are working with "lead"...basically. Also...the lead
cells...may be so badly corroded, that the acid can no longer get to do
it's thing. You may be able to boil the corrosion off by applying a
higher voltage, 16 to 18 volts.(may want to do this away from body
parts you value for future use).
But this "boil off" eventually gets between the insulators, and the
battery just heats up.
-Ed-
Ed Gaidies
Tel-Tek Electronics
Ontario-Canada
teltek3@xxxxxxxxxxxx
On 28-Aug-04, at 6:14 PM, Gary McCartney wrote:
> I found a box of 10 brand new sealed lead acid batteries, 12V 4AH that
> I
> forgot I had. Problem is, they are all very low or dead. I tried
> connecting my power supply with current limiting but the batteries
> aren't drawing any current at all.
>
> Is there any way to kick these into charging up, or are they garbage?
> --
>
>
>
>
> Gary McCartney
>
> McCartney Electronics
> Guelph Ontario Canada
> Est. 1984
> email: gary (at) number63.ca
>
>
>
>
>
>
>
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