Picture of Aluminium Sulfate Lead Acid Battery Conversion
quick how to on aluminum sulfate electrolyte for lead acid batteries.

Step 1: Purchase Ingredients.

Picture of Purchase Ingredients.
you will need aluminium sulfate, a hydrometer, distilled water and a two buckets.

also you will need a face mask. long sleeves, safety goggles and water on hand.

this job could cause death or serious harm from explosions and acid spills.

you will also need a battery charger, applicator bulb and common sense.
mougoumi5 months ago

In step 5 I see:
"feel free to use any ratio. I have found 20% sulfuric acid to aluminium sulfate works the best."

1) there should be NO sulfuric acid; lead alum is an Alkiline battery, not an acid battery
2) "any ratio" often in chemistry, a very specific ratio is required. This may be the cause of your results. One source says 10% alum to distilled water, by weight; and NO sulfuric acid.

speakerbox (author)  prof.braino1 year ago
try it and see how it goes. im no longer interested in this subject. I figured the sponge lead fatigue was the major cause of failure. nothing you can do to put the powder back on the plate so why bother?

its like trying to put rust back on your car and hope it turns to steel.

my experiments were riddled with holes but actually doing it debunked it sufficiently for me. if you think there is more to it I wish you the best.
jolshefsky1 year ago
Any idea what the chemical reactions are? As far as I know, a sulfuric acid and lead battery discharges when the negative electrode combines with the acid to make lead(II) sulfite (PbSO4) and gives off some electrons; the positive electrode is lead oxide (PbO2) when charged and takes some electrons with the acid to make lead(II) sulfate (PbSO4).
speakerbox (author)  jolshefsky1 year ago
I dont know. I put a lead and lead oxide plate in the solution and discharged them to see what it was.

The plates did not go white. I think it may be aluminum.

But as a layman I cant say for sure. Wish I knew...

Btw there is little or no charge when you add the solution. Also they self discharge in a matter of weeks.

This was my last experiment after trying to resurrect dead batteries. The whole battery rejuvenation idea is bunk imo.

Moving on to hho to see if there is anything to that.