Bosch Maintenance-Free Battery Desulphation: Gassing Issues & Effective Techniques (90 characters)

cool, where can you buy this perhydrol ??

http://www.youtube.com/watch?v=q5jvbj2SVZg
can someone comment this video?
Does anyone have a schematic of such a system?

Perhydrol 30% can be purchased at a barbershop, the cost of a large bottle is around PLN 12

Owik, buddy, the season for batteries is coming Everyone of the shit of the whip wants to shoot, notice that the topic about rectifiers has also moved

Rid up the topic. I used the information on this topic. After replacing the electrolyte with a density of 1.28 and after charging, its density is 1.30, leave it as it is? You can see the battery has come back to life, but the density does not bother me.

Hello,

I have recently attempted to regenerate the EXIDE 72 Ah battery. Poured the entire contents then filled with distilled water entered ~ 250 ml of water on the targets, we know there are 6 in total. After 10 hours of charging, everything was poured out, the rinsed sediment and the brown-black mucus poured out was flooded with a new acid solution bought for all ... He charged with a current of 5 A until the charger turned off the charging. At the moment, mounted in the car (Renault Laguna 1, 1.8 8V 1997) fires very well, spins without any problems. The voltage after the night with the alarm activated is 12.4 V, which in my opinion is not unusual, but the current "Futura Centers" dropped below 12 V after night ...


I wrote a bit, I hope that my observations will be a clue for someone
Regards Bartek.

It is not poured into a battery with no electrolyte loss of new electrolyte, only water!
The old acid was left on the plates in the form of lead sulphate, and you poured out the remaining water and poured in the new acid. Now, after a good charge, you can see the density of 1.4 (I shoot), and then such a high concentration will cause the plates to corrode very quickly, and even more sulfation.
You should tire the old electrolyte until its density rises to 1.26, which will be a clear sign of desulfurization.

ugh123 wrote:

I wrote a bit, I hope that my observations will be a clue for someone

Share your observations at the turn of February and March 2018.
At a time when the batteries were collected from under the counter, I regenerated my battery just like you. Its nominal capacity was 42Ah, just before regeneration it was only 8Ah. After regeneration of 22Ah. I was in awe for three months. :)

Now there is no point in desulphating the used up batteries.
Good activity for hobbyists, curious "how much will it help"

Wlodek22 wrote:

You should tire the old electrolyte until its density rises to 1.26, which will be a clear sign of desulfurization.

In short, it is best to pour out the old electrolyte after sulfation, pour clean distilled water, not ready acid and then charge it. And this is repeated several times after the battery is discharged, e.g. with a bulb NOT TOO LOW VOLTAGE! Measure the electrolyte density and replace it as above when it is not as specified in the standard. When, after a few charges and fluid exchange, the electrolyte density is normalized and it will no longer increase after pouring distilled water and charging, then in the last stage it is necessary to discharge as above, decant this electrolyte, pour the electrolyte of the correct density and charge it. I don't remember exactly this procedure anymore and I don't know if I missed something, but that's how it looked like in a nutshell.
It's not really going to help the battery too much, but it will be easier for it to die.

ugh123 wrote:

The voltage after the night with the alarm activated is 12.4 V, which in my opinion is nothing extraordinary

In new ones, after a night it keeps 12.5-12.6V, in a few years old 12.0-12.2V

ugh123 wrote:

the previous "Futura Centers" fell below 12 V after night

which showed that her life was about to end.

Added after 2 [minutes]:

wojtek1234321 wrote:

It's not really going to help the battery too much, but it will be easier for it to die.

and the owner will have a clear conscience that he saved him to the end

You can have fun when you don't have "Szajtan machine"

Can a battery flooded with distilled water be discharged?

Wlodek22 wrote:

Can a battery flooded with distilled water be discharged?

A colleague made a mistake in describing the method "desulphurization into distilled water". It is always charged, not discharged, as needed, even several times. After each charge, the solution is poured out and refilled with distilled water. After the final solution is poured out, the battery is filled with a higher concentration of electrolyte solution, because the previous solution is never 100% removed. After charging the battery, the density of the electrolyte is corrected.

Wlodek22 wrote:

Can a battery flooded with distilled water be discharged?

It is possible, I tried with a motorcycle (MZ ETZ 250), I did not turn off the key, it stood for a few days and discharged above the norm, and at the same time it sulphated. After charging (sulphated, on the old electrolyte), he kept the current after loading the 21 W bulb from the direction indicators, maybe 5 minutes, maybe less. After applying the above "procedure", this time increased in every subsequent "session" of replacement and charging. After the last 4 "session", the one with the correct electrolyte flooded, he "lived" for over a year, maybe it was not as efficient as it used to be, but the motorcycle could be used. In those days (the end of the 80s, thirty years ago) such action made sense, you could not buy a new battery even on a prescription , such things were not available anywhere, only "under the counter" "for acquaintances", not what today, to choose from to color.

Added after 2 [minutes]:

vodiczka wrote:

A colleague made a mistake in describing the method "desulphurization into distilled water".

Perhaps, I indicated in my statement that it was just so "brief" and not all the rules are in my mind, but this is what it looked like more or less.

Pepel did, he committed.
Acid is needed for the chemical discharge of a lead acid battery.

Wlodek22 wrote:

He has done it, he has done it. Acid is needed for the chemical discharge of a lead acid battery.

Even when you pour out the electrolyte thoroughly, eg by leaving the battery in the "upside down" position for half an hour, the plates will remain soaked with acid residues and after pouring distilled water it becomes acidic. On charging, this little acid concentration increases and the desulfurization process slows down. Therefore, the acid exchange with clean water and further charging are used.
A colleague made a mistake by unloading it unnecessarily, while the discharge itself, after charging "on distilled water", is possible.

I was just browsing and somehow no one raised the - smelly as I think - topic what do you do with the spilled electrolyte and distilled water rinse? Than this acid, and additionally contaminated with highly toxic lead! Probably better not to regenerate now in times when the battery costs 150-250 PLN ...

karroryfer wrote:

I was just browsing and somehow no one raised the - smelly as I think - topic what do you do with the spilled electrolyte and distilled water rinse?

Better ask those who process used batteries on an industrial scale and if you know, describe the process.
How many people today play desulphurization combined with electrolyte replacement, 1 in 10,000, much less or much more?

Some stores where they sell batteries also accept used electrolyte.
In Warsaw, e.g. at ul. Workers' Defense Committee 39