The MTC20612 properly charges Conventional, AGM, Gel Cell and Deep Cycle 6 and 12 Volt batteries. Fully automatic, it charges the battery using a 20 amp constant current bulk charging phase limited to the constant voltage level appropriate for the battery type. It then shifts to a pulse technique to complete the charge cycle.

Operation is as simple as 1, 2, 3, 4: Turn On Power, Select Battery Type, Select Battery Size and Press Start. The computer does the rest and alerts you when it is finished. A series of diagnostic checks determine that the battery is accepting the charge current in a normal manner. If the battery charge characteristics are abnormal, the charge will stop and the battery fault light will go on.