The MXS 3.8 microprocessor controlled 7 step battery charger and maintainer is suitable for batteries from 1.2Ah-85Ah. Features include battery diagnosis to establish whether your battery can receive and retain a charge, a patented desulphation program and a ‘Snowflake’ program for charging on cold days. It also includes selectable programs for charging smaller and normal batteries. The MXS 3.8 uses CTEK’s patented float/pulse system, which is the most efficient maintenance mode when a battery is connected for long periods. The MXS 3.8 is simple to use and you can follow the whole charging process on the clear, easy to read display.