VDC Electronics, the makers of the BatteryMINDer, have perfected the battery conditioning process known as desulfation. The Battery Minder uses resonant frequency pulsing to break apart sulfate crystals on the molecular level. These sulfur based crystals build up on the lead plates and are what prevent a lead acid battery from being fully charged thus causing premature failure. By using certain BatterMINDer chargers this sulfation build up can be reversed and prevented extending the useful life of a battery by more than 2x. See our full line of BatteryMINDer VDC Electronics super smart desulfating chargers below or click here to see all our desulfating brands.