Ask the Expert: What is the proper way to care for a battery in cold climates or freezing conditions?

Q: What is the proper way to care for a battery in cold climates or freezing conditions?

A: Regardless of the temperatures, batteries are always happiest when they are fully charged.  A slightly discharged battery might start a vehicle on a warm day but that same battery would probably not have a chance on a freezing day.  Batteries need special care in the cold because they will drastically lose cranking power when the mercury drops.  

A discharged battery not only means the user could be stranded with a vehicle that is not starting, but also a danger that the battery could freeze and be destroyed.  In extreme cold a battery should also be charged slightly differently than in normal temperatures.  

The CTEK MUS 4.3 POLAR has been specially developed to offer excellent all-round charging with special cold weather performance and adapted AC and DC cables to handle severe cold down to -22 degrees F (-30 degrees C). The MUS 4.3 POLAR is an advanced microprocessor controlled battery charger for providing service on batteries from 1.2Ah up to 110Ah.

Features include weather-proof design approved for outdoor use, diagnosis of battery condition to establish if it can receive and retain charge, patented automatic desulphation program and a special reconditioning function that will revive and restore deeply discharged and stratified batteries. ‘Snowflake’ mode ensures ideal charging performance even in the most extreme cold conditions. Patented "Float/Pulse" maintenance makes the MUS 4.3 POLAR ideal for long-term maintenance. The entire process of battery testing, charging and maintenance is easily followed on the clear LED display

For more information about CTEK charging systems, phone 330-963-0981, email, or visit    

Information provided by: CTEK