26 Amperes Smart Battery Charger for 12-volt and 24-volt batteries; charges and maintains all types of lead-acid batteries from 25-500Ah, 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 * Multiple Charging Modes; A Cold/AGM Mode optimized charge mode for charging batteries in cold weather below 32 degree Fahrenheit or AGM batteries, 16 Volts Boost Mode for advanced battery desulfation and recovering deeply discharged batteries, and 13.6V Supply Mode for reconditioning batteries, retaining onboard computer memory during battery changes, and power other DC powered devices (i.e. Tire inflator). * 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