Ctek Mxs 3.8 Car-Motorbike Battery Charger, as pictured with carry case, appears in mint condition, untested.The MXS 3.8 is an advanced microprocessor controlled battery charger with patented Float/Pulse maintenance for use on all batteries from 1.2Ah up to 80Ah. The MXS 3.8 solves a broad range of battery problems and is the ideal charger for everyday use. Features of the MXS 3.8 include diagnosis of battery condition to establish if it can receive and retain charge, patented automatic desulphation program and a special "Snowflake" mode for optimum charging on cold winter days.