CTEK MXS 3.8 charger (MXS 3.6). The MXS 3.8 is an advanced microprocessor-controlled battery charger with patented Float/Pulse maintenance, intended for batteries from 1.2 Ah up to 85 Ah. MXS 3.8 solves many different battery problems and is the ideal charger that can be used every day. The MXS 3.8 offers a battery health check to check if it can be charged and if it can hold a charge, a patented automatic desulfation step and a special "Snowflake mode" for optimal charging on cold winter days. The patented Float/Pulse maintenance function makes the MXS 3.8 ideal for long-term maintenance. The entire process of testing, charging and maintaining the battery is easy to perform via a clear LED display. The MXS 3.8 is a fully automatic plug-and-forget 12 V charger and includes seven charging stages and the option to select programs for 0.8 A or 3.8 A. The "Snowflake mode" uses the program for 3.8 A. A wide charging range for all types of lead batteries from 1.2 Ah up to 80 Ah with additional maintenance up to 130 Ah. Splash and dust resistant (IP65). MXS 3.8 is easy and safe to use, protects the vehicle electronics, is spark-free, offers protection against connection with the wrong polarity and is short-circuit proof. MXS 3.8 comes with a 5-year warranty.