12V 60A car battery , maybe dead?

[Groundloop]

Groundloop, I wanted to ask you if I could
post some pictures of  "Groundloop desulfator charger" on Oupower as a project?

@Palic,

1. Fill the dry out cells with distilled water.
2. Build pulse charger.
3. Charge battery.

If battery cells is short circuit then recycle battery at nearest station, else enjoy a "new" battery.

Groundloop.

are you telling me that the acid is still in the cell, or on the cell, even if it's totally dry
and that's why I should not rinse the cell with destilated water and change the entire electrolite?

Thank you
   Palic

[/quote]

@Palic,

I have already posted a circuit diagram of my charger in this thread. See no need to do that again.
Attached is a image of my unit. As you can see I use two transistors in parallel so that I do not need
a very big heat sink.

Now to your dry out battery cells. In most cases the battery is still good to go if the cells is NOT short circuit.
There is no need to rinse the cell with water first. Just add distilled water. The acid is STILL there but bound as lead sulphate (and lead oxide) on the plates. When you charge the battery the acid will "reappear" in the water again.

Groundloop.

[Palic]

Thank you very much for that information Grounloop

[
There is no need to rinse the cell with water first. Just add distilled water. The acid is STILL there but bound as lead sulphate (and lead oxide) on the plates. When you charge the battery the acid will "reappear" in the water again.

Groundloop.

Yesterday the windings were finished, today it's going to be electronics
I have one old heat board with already two 2n3055 transistors on it,
so this info came in just the right time.
Just to be sure, I connect the basese,collectors & emiters all
with each other pair, without resistor on emiters or bases ?
I will try to put the diodes on the
same heatboard, if I can't I will use another one.

[Groundloop]

@Palic,

Yes that is correct. Collector to collector, Emitter to emitter and Base to base.

If you want to use the same heat sink for both the transistors and diodes AND
your diodes is the TO-220 devices, then REMEMBER to use insulation between
the components!  Use rubber silicone and plastic "screw bricks".

Groundloop.

[Palic]

Its working 
I have batteries 180Ah that have 3 cells, 6V.
Do you think I shold desulfate one by one battery, or I could conect two of them in series?
Thank you  Groundloop
Palic

[Groundloop]

@Palic,

Just charge ONE by one. Also remember that the battery will improve
over several discharge / charge cycles.

Groundloop.