Battery desulfators electrically shake the sulfate crystals that build up on the lead plates of a flooded lead acid (FLA) battery over a period of time. Before desulfators, batteries with sulfate buildup would effectively be considered dead. Our desulfators can be used with large battery banks, or even that old 12 Volt automobile battery that you stored in your garage. Typically a desulfator needs to be used in conjunction with several charging and discharging cycles to fully realize its benefits. Some customers even leave their desulfator permanently connected to prevent sulfation from occurring.