How to recover a car battery

My guess high temps destroys by warping plates and removing electrolyte. and going flat destroys by sulphation. Over charging also removes water/acid. De Sulphating hard sulphate deposits, you need a higher voltage across each cell and therefore a high current but this causes heat/high temps, which removes electrolyte and warps plates.
So you use a DC welder, but only for 15 seconds, Then let the battery cool and have another 15 seconds go in 2 hours time checking the CCA after each try and a trickle charge in between. Keep repeating this while the CCA increases. But once this stops going up quit. with a trickle charge in between. Using a trickle charger with an amp meter. Stop charging once the charge current drops to about an amp so as not to over charge and loose electrolyte. I have had some success doing this, getting a change from 50 CCA to 325 CCA, but Chinese desulphating charger ()*&Q^(#*&%()#*&^%_)(*&%_)(*+%_)#????????. You also need a load tester or something to measure the CCA. I have seen U tube videos of people bring batteries to the boil, but this would remove electrolyte and or warp plates, Since most 12Volt car batteries are maintenance free, You can't top up with out surgery on the battery case somehow. So look after the electrolyte you have My 2 cents worth. And don't electrocute yourself with your welder. Electricity is heart stopping stuff. a tenth of an amp for a tenth of a second can stop your heart, Your welder produce 60-160 amps your car battery like wise with even more amps, Extra low voltage like DC12-25 volts can still be deadly.

How to replace CD4049UBE with a proper transistor circuit?

voleurs d idées

bande de copieurs

Can I use it on home inverter battery?

Interesting! 😁

Interesting but what makes this superior to commercially available desulfators. For example ,I own one "BLS desulfator", "two Battery Extras" and one PulseTech Power Pulse PP-12L. All of these are permanently connected to 12v batteries. My first question is how is this circuit superior to these commercially available models? How one compares to the others, is, in my opinion subjective. I can only say that on two cars with a Battery Extra on one and a Pulse Tech on the other that after 18 months with the same batteries purchased at the same date; the Battery Extra setup showed issues on a load tester, while the Pulse Tech did not. Do these products really extend battery life? Hard to say. I have the same questions about this circuit.
For most of us it is easier simply to buy something off the shelf as opposed to chasing around looking for components. Then at the end of the day you can see the pulses on the scope but do these really desulfate a battery?

NOCO makes a battery charger with a desulfator at a very reasonable price: NOCO GENIUS2, 2A Smart Car Battery Charger, 6V and 12V Portable Automotive Charger, Battery Maintainer, Trickle Charger and Desulfator for AGM, Lithium (LiFePO4), Motorcycle and Deep Cycle Batteries

If the unloaded voltage of the battery is 12v, it is practically empty.

where can i buy this device

While it is true that the 555 can be driven below 50% duty cycle using diodes, I do think a CD4049 makes a better gate driver than the 555 output, so kind of a two-birds-one-stone type thing.

Only 1resistance connect on pin no. 5 to ground we can get reduce the duty cycle of 555 timer ic. In this case ground to pin no. 5, 1k resistor sufficient. And 8 to 7 pin should be 1k resistor।

I have experimenting with astable multivibrator for the frequency generator instead of 555 and the inverters. It works great and is very simple to build.

It simpler to use p type mosfet instead 4049 inverting buffer...

J'ai remarqué une autre erreur que vous avez faites. Vous avez soudé la broche n°16 du CD4049 au GND alors que le shéma indique la broche N°8 ! ! ! Pourquoi ?

il semble que vous avez fait une erreur sur la résistance R3 . Vous avez soudé une 39 Ohms et il fallait selon le schéma que vous donnez une 39k Ohms... Regardez votre vidéo à 10'08"

Very nice I will have to make one as I have a 12 volt battery that needs some love, thank you for your hard work and video

Please make a BMS topology

Hi I've tried Infinitum desulfators and even made my own. No luck and the infinitum desulfator was 50 AUD? absolutely ridiculous. I need your desulfator bad! Any reply appreciated cheers from Australia just subbed.nice work love it so much 🙂👍👍👍

This project is very good!

links wont work

Why this R1 limiting the NE555 voltage supply, since it can be perfectly povered at 12V?
Furthermore, CD 4049 is absolutely useless if you adjust NE555 duty cycle that, with a different configuration from this, can be set from 10 to 90%

i tested it it draws more than 1A b4 connect to battery and not more than 27V output and the mosfet become too hot ....

While the circuit is not the ideal way to accomplish the goal, her accent makes up for that ten fold.
Da PIMP (which stands for 'Power In My Pocket') is a simpler and cleaner desolator. No affiliation. Nor do I even know where to get one, but videos are on YT.

I built this. It does not work for me. No pulsing at all. One thing I did differently was grounding the unused inputs on the CD4049 per advice from electronics forums.

The circuit basically a boost converter Without feedback circuit and output capacitor...nice video though

Far as I know, its the high discharge that cleans the plates up, not a charge or pulse charge. It needs to be a high current pulse discharge instead.
Has anyone made this circuit and actually repaired the battery???

HER508 diode is not available in market, can you please recommend the alternate diode for it.

Your voice is so great and your videos are the best!

I have built a device like this... no success... I have more success with high voltage pulsating current from a powerful automotive rectifier,... best solution just replace the battery if a normal charge does not work it out in two days.
The high voltage high power will heat the battery and dissolve the layer better than this very-low power circuit.

What this circuit do for battery ..why you charge in direct by transformer ...what frequency do for battery

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Thanks for this video. There are many ways to not use the inverter IC: Simple NPN or N-FET to invert the 555 output, or use two diodes in the resistor timing path (this allows for separate on/off times), or use a P-fet and other ways.

Der Desulfator wird ganz einfach verbessert, indem man die Leiterbahnen vom Schutzlack befreit und zusätzlich verzinnt zum 100uF C1, zum IRF 3205 , zur Spule und die Leiterbahnen zum Plus und Minuspool. Zusätzlich noch 1,5mm2 Gauge 14 zum Akku und größere Krokodilklemmen.

Very nice channel, nice project, nice voice;) ... just maybe the explanation about the role of C1 in the circuit is a bit incomplete.

Dear madame, your channel is very useful to me.please make a video , how to convert 12v dc battery to 12-0-12 dc dual supply. Thank you. Thank you so much.

the true inventor. and i trust this channel.

This is all fine and dandy, but nearly all batteries that failed me were do to cell(s) opening or shorting. There is NO fix for that! For batteries that are just weak, where all cells are just overly discharged, just a low amp charger that outputs a voltage of around 14.8 for a few days, watching that it doesn't boil hard. Don't use the type of charger that just cycle on at 13 volts and shut off @ 14.2 volts. You need a constant steady output (regulated). Junk stupid chargers (non regulated) just keep going till they top out around 17 volts or so! These ruin batteries fast!

DIY desulfator.
This is what I need!!!

Basic boost converter

It's totally useless if the battery plate is broken!

the unused inputs on the hex inverter ought to be grounded

Do not see the need for the CD4049 .....just change the Duty Cycle of the 555

Nice vocal. Beautiful

I find your use of the English language awkward and hard to understand. Stop using "Google Translate" and find a real live translator. Why do you use that man to demonstrate things in your videos? Why don't you do it yourself?

Hmmmm basically Boost converter with 10% duty cycle

Hmm, I wonder if you could make SO3 (and H2SO4 in turn) this way?

First of all your explaining method is too good. Please help me how I can make boost power supply 3V input 12V output required for Fan. Fan current is 700mA. Thanks

Your links to the products are broken..

Hi
I have a question!
in the circuit diagram you displayed it shows that pin no 8 of CD4049 is connected to ground, but in the printed circuit board it shows no 16 is connected to ground instead while no 8 is not connected at all.
I am a bit confused, which one is correct?