DinoDirect has the Othermix Lead-Acid Battery Recovery Auto Pulse Battery Desulfator JCP-2 (Auto-JR01) for $22 with free shipping. 20mA max working amp and auto-setting for 12-48V battery.
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I looked around to see if this was anything other than snake oil. Here is the most lucid opinion:
Simply put, you effectively desulfate a battery every time you recharge it. Batteries sulfate when you discharge them. the sulfation or essentially an oxidation of the active material is what produces electrical current. You reverse this process when recharge the battery.
Maybe if you hook this up to that ear cleaner thingamabob it'll get rid of stuck-on ear wax boogers...
That is not good info.
Sulfation most commonly occurs as a result of letting a battery stand in a partially-charged or discharged condition. Note that this the condition a battery normally attains when stored without a float charger attached.
Sulfation is characterized by the battery refusing to accept a charge when a normal charger is attached. The terminal voltage goes up to the charging range [something at least north of 14.5 V] but the current stays very low or zero.
Sulfation is normally countered by applying a comparatively high voltage to the terminals. The desulfation charger normally has a current limit included as when the sulfation breaks down the current will rise. If the current [total power] is not limited, the battery will boil dry and be ruined. When the sulfation is broken down [typically a few hours] then the battery is charged in the usual manner. Some batteries do not successfully desulfate and are thereby scrap.
Notice that I did not speak to whether or not the posted charger is up to the task, as I don't know. I have an industrial-strength charger that includes the desulfation function as a selection on the control panel. It has saved a good many batteries over the years, and has failed to save a few others. YMMV.
I was recently looking up how to revive my dead dewalt batteries by briefly hitting them with higher voltages. I've seen others use welders also with good results. Got half of my batteries back to holding charges whereas they would hold zero charge. Someone told me it was the same with lead acid (my dewalts are NiCD). This may be similar and looks to follow suit with #3.
Just don't go trying that with Lithium batteries folks.
i wouldnt buy anything from the site
This is what U get when U breed a Baloney and a crockodile...
...a Crock-o-baloney.
Just wrap in sum DinoDung
This is absolutely useless and a waste of money, if your battery dies, it will die, this thing will not help with anything other then a waste of money.
Othermix, manufacturer of clothes. Yah -- that's what I want trying to revitalize my lead acid battery. The new power of spandex heals too. From Dino "high power frequencies dissolve sulfates". 20 ma is high power. I better hide those 100 ma alkaline batteries before they go nuclear.
Sham!
If you live where the winters are cold remove your batteries and bring them inside. Get some FLOAT chargers to keep them charged.
Just don't go trying that with Lithium batteries folks.
With NiCd Dewalt et al cells there was dendrite growth which permeated the cell barrier and created a short circuit. Zapping with enough current to burn through the dendrite works to TEMPORARILY get the cell functioning again but a cell that degraded will soon enough short out from further dendrite growth. It's sort of hack for short use with there still being a need to replace the battery pack.
It is not similar with lead acid, sulfation is not a short circuit it's a coating on the plates with non-conductive crystals.
This product does have the potential to revive a lead acid battery if designed properly which is a factor I don't know having not owned one.