This compact 12V battery float maintainer is microprocessor controlled for intelligent, safe, and efficient battery maintenance. Read More 2/4/8 AMP – Use the 2 Amp setting for batteries that are charged and in good shape. Use the 4 Amp setting when charging more than one battery or a large deep cycle battery. Sulfated batteries once considered beyond recovery can now be brought back to long-term useful condition; extending battery life up to four times when compared to new batteries not being properly maintained. Car Motorcycle Boat Battery Charger Verilux® Fully Automatic Battery Charger 5A 12V, Car Battery Charger Battery Desulfator Reconditioner It works well and is a dream to have. In addition it can charge up to 6 batteries at once (I picked up a 5 point sae connector for ~$14) which is awesome for a... The 8 Amp setting is best for wet, AGM, Sealed, and Lithium batteries. EXTENDED BATTERY LIFE: Automatic full-time desulfator reverses sulfation (a buildup of lead sulfate crystals) - the primary cause of early battery failure by using a patented range of high frequencies to safely remove sulfation and recondition weak batteries. NEXPEAK NC175 6V/12V 1.75A Smart Lead-Acid Battery Charger and Maintai Use the Odyssey selection for all Odyssey batteries.