The batteryMINDer, atleast the little $40, 1.3 amp model will slowly desulfate a sulfated battery, although it can take months on a severly sulfated one. I had one in a rolled over Hough payloader I bought. Big 12V battery that laid upside down for several hours when the machine rolled and killed the operator. All the electrolyte drained out while it laid upsidedown then the battery and machine laid in a salvage yard for a year, so the battery was sulfated almost beyond hope with the plates exposed to air for a year.
I bought the machine , refilled the battery with new electrolyte and put it on the desulfator. after a week it would put out enough to engage the starter and roll the engine about 1/2 turn. After a couple more weeks it would start the engine. After several months of use and desulfating it would crank much longer than the starter could safelt take. I would guess that battery regained 90% of new capacity.
bottom line, is that a charger with the desulfate feature will slowly remove the sulfation from a sulfated but otherwise healthy battery. It in no way will magically restore a shorted or worn out battery. I see the latest BatteryMINDer model now has temperature compensation so it better maintains full charge without overcharging in temps from -40 to +130.
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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