12-08-2012, 07:26 PM
(This post was last modified: 02-20-2017, 03:20 PM by admin_monkey.)

Old Chopper has been workin' on makin' a desulfator, Im up to mark 7 so far and they seem to actually work well, I have 3 "out there" on beta test :p

The idea is to generate short sharp high voltage (around 50 volts) high current (greater than 30 Amps) pulses that are fed to the battery to "shock" the sulfate crystals off the lead plates.

Here is a screen shot of the open circuit voltage of mark 7 as you can see, theres around 50 odd volts (peak) there.

And now connected to a fairly crappy and old 12 volt 9AH gel cell, the voltage has dropped but thats ok, it means its working. Its the CURRENT peak we are interested in now.

I used a 0.22 Ohm 5 Watt resistor (lowest value I could easilly find) in series and measured the voltage accross it with the CRO It was at a peak reading of 11 volts, that means 50 AMPS of peak current! The peak voltage and peak current will drop as the battery improves.

If anyone is interested in more, or wants to have a crack at making one, let me know.

The idea is to generate short sharp high voltage (around 50 volts) high current (greater than 30 Amps) pulses that are fed to the battery to "shock" the sulfate crystals off the lead plates.

Here is a screen shot of the open circuit voltage of mark 7 as you can see, theres around 50 odd volts (peak) there.

And now connected to a fairly crappy and old 12 volt 9AH gel cell, the voltage has dropped but thats ok, it means its working. Its the CURRENT peak we are interested in now.

I used a 0.22 Ohm 5 Watt resistor (lowest value I could easilly find) in series and measured the voltage accross it with the CRO It was at a peak reading of 11 volts, that means 50 AMPS of peak current! The peak voltage and peak current will drop as the battery improves.

If anyone is interested in more, or wants to have a crack at making one, let me know.

"If a clutered desk is a sign of a cluttered mind, of what, then, is an empty desk a sign." Albert Einstein

Well, I have the cluttered desk, I guess that's a start!

Well, I have the cluttered desk, I guess that's a start!