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Lead acid battery desulfator / desulphator circuit query.
Disclaimer #1 - I can assemble a simple circuit from a schematic but
that is about my limit as far as skill and knowledge goes. I've been looking at battery desulfation, and it seems to boil down to sticking a high energy pulse of about 4 times nominal voltage (so about 50 VDC for a 12 VDC lead acid battery) for a short duration into the battery to break up the hard sulphation on the plates. Every design I have looked at appears to revolve around using very fast frequency, and very small in terms of joules per pulse, and generally a very "delicate" approach. I've got a bunch of coke tin sized siemens 3300 uF 350 V electrolytic caps here, and looking at them it occured to me that they offered a way of doing this pulse charging with far lower frequency, perhaps a pulse a second or one pulse every ten seconds, as opposed to the kHz rate of the desulfator circuits I have been able to find online, but each pulse being far more energetic and therefore more likely to break up any hard sulphate on the battery plates. I don't know nearly enough about electronics to modify any of the circuits I have found online (such as http://www.geocities.com/Yosemite/23..._tips/e04.html) nor can I find anything taking this "much slower but much more powerful pulses" approach. What I am looking for is a schematic (with appropriate component specs and values) that would allow me to build such a circuit and see if it would work. Not really worried if the circuit draws power from the battery itself or from a charger, (with suitable isolation to prevent the high DC voltage pulses mucking up the charger) Can anyone help or offer any suggestions as to where I could find such a circuit, as this orders of magnitude slower pulses and orders of magnitude higher energy per pulse approach to desulfation doesn't appear to have been tried, as far as I can tell. TIA |
#2
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Lead acid battery desulfator / desulphator circuit query.
On 28 May 2007 07:24:07 -0700, Guy Fawkes
wrote: Disclaimer #1 - I can assemble a simple circuit from a schematic but that is about my limit as far as skill and knowledge goes. I've been looking at battery desulfation, and it seems to boil down to sticking a high energy pulse of about 4 times nominal voltage (so about 50 VDC for a 12 VDC lead acid battery) for a short duration into the battery to break up the hard sulphation on the plates. Every design I have looked at appears to revolve around using very fast frequency, and very small in terms of joules per pulse, and generally a very "delicate" approach. I've got a bunch of coke tin sized siemens 3300 uF 350 V electrolytic caps here, and looking at them it occured to me that they offered a way of doing this pulse charging with far lower frequency, perhaps a pulse a second or one pulse every ten seconds, as opposed to the kHz rate of the desulfator circuits I have been able to find online, but each pulse being far more energetic and therefore more likely to break up any hard sulphate on the battery plates. I don't know nearly enough about electronics to modify any of the circuits I have found online (such as http://www.geocities.com/Yosemite/23..._tips/e04.html) nor can I find anything taking this "much slower but much more powerful pulses" approach. What I am looking for is a schematic (with appropriate component specs and values) that would allow me to build such a circuit and see if it would work. Not really worried if the circuit draws power from the battery itself or from a charger, (with suitable isolation to prevent the high DC voltage pulses mucking up the charger) Can anyone help or offer any suggestions as to where I could find such a circuit, as this orders of magnitude slower pulses and orders of magnitude higher energy per pulse approach to desulfation doesn't appear to have been tried, as far as I can tell. TIA You might care to join this discussion group for further assistance. http://p198.ezboard.com/bleadacidbatterydesulfation |
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