Your opinion of Battery Desulfators
Hi All - A while back, only a couple of months after I installed my 2 GC2 245 AMP hour batteries and solar panels, I had an accidental removal of the breakaway pin which caused our 5th wheel brakes to...
Forum Discussion
The setup, the qualification, the testing on dozens of same brand batteries revealed that no pulse algorithm could compete with A BCI equalization exercise.
Concorde Battery and Rolls & Surrette are sharply opinionated against "ripple" of any kind appearing upon one of their batteries. Further chatting revealed that voltage at the terminals shall exhibit no more than twenty millivolts.
To a certain amplitude .200 pulsing did nothing at 200 Hz, but at 1Ghz the waveform actually damaged valid areas of the positive plates, while doing little if anything to the areas that were lattice sulfated.
One of my funding entities attended an exhibition. Plates were arranged outside around the periphery of a 4 x 8 sheet of plywood, with attendant plastic cover sheets annotating test parameters.
Their engineer kept harping, "But this may not be enough energy (?)"
I then connected a series pair of their 220 ampere hour golf car batteries that had undergone 100% ampere hour extraction via a ten ohm load for a week. The batteries were totally sulfated.
"More! more!" the engineer urged. OK I gave it "more".
Electrolyte shot several feet into the air from the six cells. The concrete containment pad managed the spill. I inverted both batteries and buzzed the jar bottoms off. The plates were warped and twisted. The sediment chambers held zero plate debris.
I hope my Westinghouse frequency generator found a good home. It was rumored that the machine had aided testing of the skin of the SR-71 then it was found perhaps not to so what it was intended to do. This was the mechanism that got me into trouble with DARPA. I had to enclose the machine and work area within a Faraday cage.
By finding the Weak Sister Cell of each battery it significantly reduces time spent with a hydrometer. Once weaker, always weaker. First to lose equality, last to regain it.
SIDE NOTE
Sometimes on eBay folks will sell precision manganin shunts. A 100 ampere capacity shunt rated at 100 millivolts is a perfect match for one of those 5 digit dual voltage ammeters. Dual voltage because it has 4 wires. Two must see 12 volts to power the LED number display. If less than 3.0 volts is seen by the remaining two meter leads the meter will reset itself to the 3.0 volt scale.
The two wires are hooked to the small terminals on the shunt blocks.
A 100 millivolt drop across the shunt is full scale. The capacity of the shunt. Because the meter is reading on low scale the resolution is to on tenth of an amp. That's not the main issue -- the main issue is that "ammeter volt gauge" will be accurate to a hundredth of an ampere. The meter impedance is so high that accuracy is guaranteed.
A dirt-cheap lab grade ammeter. But of course there are drawbacks. Loop power means the meter is powered by the thing being measured. Power to the display does not require precision twelve volts.
Yellow is the easiest color to see.
https://www.ebay.com/itm/DC-3-5-30V-Mini-5-Digit-Digital-Yellow-LED-Ammeter-Current-Meter-Panel-Car/292326323307?hash=item441001b46b:g:JFwAAOSw1JVaBrae
https://www.ebay.com/itm/DROK-Anti-Rust-Metal-Electric-Current-Shunt-Resistors-100A-100mV-Copper-DC-Sh/172893692924?epid=16004136009&hash=item28414463fc:g:-J0AAOSwC11ZzoNm
Concorde Battery and Rolls & Surrette are sharply opinionated against "ripple" of any kind appearing upon one of their batteries. Further chatting revealed that voltage at the terminals shall exhibit no more than twenty millivolts.
To a certain amplitude .200 pulsing did nothing at 200 Hz, but at 1Ghz the waveform actually damaged valid areas of the positive plates, while doing little if anything to the areas that were lattice sulfated.
One of my funding entities attended an exhibition. Plates were arranged outside around the periphery of a 4 x 8 sheet of plywood, with attendant plastic cover sheets annotating test parameters.
Their engineer kept harping, "But this may not be enough energy (?)"
I then connected a series pair of their 220 ampere hour golf car batteries that had undergone 100% ampere hour extraction via a ten ohm load for a week. The batteries were totally sulfated.
"More! more!" the engineer urged. OK I gave it "more".
Electrolyte shot several feet into the air from the six cells. The concrete containment pad managed the spill. I inverted both batteries and buzzed the jar bottoms off. The plates were warped and twisted. The sediment chambers held zero plate debris.
I hope my Westinghouse frequency generator found a good home. It was rumored that the machine had aided testing of the skin of the SR-71 then it was found perhaps not to so what it was intended to do. This was the mechanism that got me into trouble with DARPA. I had to enclose the machine and work area within a Faraday cage.
By finding the Weak Sister Cell of each battery it significantly reduces time spent with a hydrometer. Once weaker, always weaker. First to lose equality, last to regain it.
SIDE NOTE
Sometimes on eBay folks will sell precision manganin shunts. A 100 ampere capacity shunt rated at 100 millivolts is a perfect match for one of those 5 digit dual voltage ammeters. Dual voltage because it has 4 wires. Two must see 12 volts to power the LED number display. If less than 3.0 volts is seen by the remaining two meter leads the meter will reset itself to the 3.0 volt scale.
The two wires are hooked to the small terminals on the shunt blocks.
A 100 millivolt drop across the shunt is full scale. The capacity of the shunt. Because the meter is reading on low scale the resolution is to on tenth of an amp. That's not the main issue -- the main issue is that "ammeter volt gauge" will be accurate to a hundredth of an ampere. The meter impedance is so high that accuracy is guaranteed.
A dirt-cheap lab grade ammeter. But of course there are drawbacks. Loop power means the meter is powered by the thing being measured. Power to the display does not require precision twelve volts.
Yellow is the easiest color to see.
https://www.ebay.com/itm/DC-3-5-30V-Mini-5-Digit-Digital-Yellow-LED-Ammeter-Current-Meter-Panel-Car/292326323307?hash=item441001b46b:g:JFwAAOSw1JVaBrae
https://www.ebay.com/itm/DROK-Anti-Rust-Metal-Electric-Current-Shunt-Resistors-100A-100mV-Copper-DC-Sh/172893692924?epid=16004136009&hash=item28414463fc:g:-J0AAOSwC11ZzoNm
