Aztec’s loco chargers are electronically controlled and designed to taper charge (3-stage) between 30 and 99 traction cells. They range in capacity from 400 to 1000Ah and have an override equalising function for sulphated batteries.

Once Aztec’s Mini M charger has been matched to the loco battery (i.e. correct Ampere-hour capacity and number of cells), no further adjustments can be made in the field. The Midi M, however, allows for the Ampere-hour setting to be adjusted in the field using a thumbwheel, while the Maxi M can be adjusted in the field for both the Ampere-hour capacity and the number of cells by using several push buttons.

Aztec also supplies and repairs VC battery-charger logics