Battery reverse rejuvenation

[capwizard]

I use Epsom salt try to rejuvenate, no water, for Razor E100 electric scooter, 12 volts 4.5AH, totally dead, battery.

I filled it with Epson solution and I tried to charge it up with 247.4 volt DC voltage still nothing happened so I changed the polarity of the battery then it works up to 5A charging current.

My question is can the battery be used as reverse voltage, I mean black terminal is +12v and red terminal is ground?

[capwizard]

Re: Battery reverse rejuvenation

https://www.batterystuff.com/blog/ba...-polarity.html

I think, I better change it back! ASAP, but if I did not reverse the polarity, the battery won't take the change!

Isn't possible, if you want to charge of a dead battery, first is to reverse the polarity?

[eccerr0r]

Re: Battery reverse rejuvenation

Yes, lead acid batteries can be charged in reverse due to its mostly symmetric design.

Don't sweat it though. The battery is already ruined.

[capwizard]

Re: Battery reverse rejuvenation

it is a lead-acid battery why we put Epsom salt (alkaline) inside the battery? Shouldn't we put acid solution inside the battery? After we neutralizing the battery's electrolysis fluid?

I found the answer
Lead Acid Battery Desulfation Using Epsom Salt

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Can you put new acid in an old battery?
Most new batteries are maintenance-free, so you can't mess with the components inside. Older battery designs lose water in the electrolytea mixture of about one part sulfuric acid and two parts waterfrom evaporation. ... Charging the battery reverses the chemical reaction and restores the plates' chemistry.

The Super Secret Workings of a Lead Acid Battery Explained
https://www.batterystuff.com/kb/arti...d-battery.html

Charging is a process that reverses the electrochemical reaction. It converts the electrical energy of the charger into chemical energy. Remember, a battery does not store electricity; it stores the chemical energy necessary to produce electricity.

A battery charger reverses the current flow, providing that the charger has a greater voltage than the battery. The charger creates an excess of electrons at the negative plates, and the positive hydrogen ions are attracted to them. The hydrogen reacts with the lead sulfate to form sulfuric acid and lead, and when most of the sulfate is gone, hydrogen rises from the negative plates. The oxygen in the water reacts with the lead sulfate on the positive plates to turn them once again into lead dioxide, and oxygen bubbles rise from the positive plates when the reaction is almost complete.

[eccerr0r]

Re: Battery reverse rejuvenation

You should just put sulfuric acid in it. Just a few drops will do. No point in putting Epsom salts in it, though Epsom salts should be slightly acidic anyway (not basic).

[budm]

Re: Battery reverse rejuvenation

https://batteryuniversity.com/learn/article/additives

[capwizard]

Re: Battery reverse rejuvenation

Using Epsom Salt (Magnesium Sulfate) to Desulfate a Lead Acid Battery that has a dead cell.

Table of contents:
Part 1: Initial addition of the chemicals http://youtu.be/vqfaziZE1XM
Part 2: Adding Solution to Dead Interstate Megatron battery http://youtu.be/lFEnErs68XM
Part 3: First Tests after Charging http://youtu.be/W_vpvjRIsHU
Part 4: After Overnight Full Charge + Demoing Capacitive Desulfating Charger http://youtu.be/OF6obbSSUws
Part 5: Using one of our custom built Capacitive Chargers to Pulse Desulfate Further. http://youtu.be/IlKaz3iv168
Part 6: Interstate Battery after 1 week on Desulfating Charger + Solution http://youtu.be/WCAG2oJffvY


How to build a Desulfating Capacitive Battery Charger, Complete with Diagram Start to Finish
https://www.youtube.com/watch?v=N6NluEvBAUU

[capwizard]

Re: Battery reverse rejuvenation

There is a way to do 100% rejuvenate any old Lead acid Battery...........

Lead acid Battery making process complete step by step.|start your own battery making business
https://www.youtube.com/watch?v=N0eE_5GZZiE

How to make Deep Cycle Batteries
https://www.youtube.com/watch?v=3Sg-u0_7d1g

What he did was exactly what I was going to do. and this is also not working....

WILL NEW ELECTROLYTE BATTERY ACID RESTORE A CAR BATTERY.
https://www.youtube.com/watch?v=qcn6uoQnekI

[stj]

Re: Battery reverse rejuvenation

i'm surprised you have not made your own battery yet.

btw, if your going to get the crystals & shit off the plates using chemicals or electronic pulses, you should probably flush it out afterwards and then fill it with fresh acid.

[Jesse James]

Re: Battery reverse rejuvenation

Wow some great info thanks

[redwire]

Re: Battery reverse rejuvenation

Lead acid batteries can fail due to sulphation or the plates corroding.
If the plates are shot and you give it the sulphation treatment, it will just make lots of hydrogen and waste your time.
I have never been successful reversing sulphation, electron microscope pics show the lead sulphate crystals are non-conducting and stuck in the pores of the plates. Very hard to dislodge or dissolve.