4.4 Amperes (1.1 Amperes per bank) Smart Battery Charger for 6-volt and 12-volt batteries; charges and maintains all types of lead-acid batteries from 2.2-40Ah, including Wet, Gel, MF, and AGM * Designed for safety; safe for anyone to use; does not generate sparks, and protects against reverse battery hookup, short circuit, open circuit, overheat, overcurrent and does not overcharge the battery * Brings batteries back to life; an advanced recovery mode repairs damaged areas of the battery to provide longer, healthier battery performance; recovers deeply discharged and sulfated batteries with pulse charging * Cold/AGM Mode; Optimized charge mode for charging batteries in cold weather below 32 degree Fahrenheit or AGM batteries * The most advanced charger ever; it features innovative and advanced technology that makes charging easy and simple. the vosFX Processor built inside every charger makes important charging decisions so you don"t have to; it is the safest, most effective charger you may ever use