Battery Life Saver BLS-48BW 48 volt Battery System Desulfator Rejuvenator For use with 48 volt battery systems, most commonly used with solar/wind battery banks Can extend battery life two to three times by removing and preventing the accumulation of lead sulfate crystals using patented square sine technology Rejuvenates old weak batteries. Maintains new batteries in optimal condition. Prevents slowdown. Restores power and performance to any electric motorized vehicle. From golf carts to trolling motors, you'll regain lost performance. This model is the same as the BLS-48A, but has 4 foot wire leads giving an 8 foot span Comes with alligator type battery clips for attachment