Why Your Car Struggles to Start in Cold Weather: Battery or Alternator?

Technician testing a car battery to diagnose why a car won't start in cold weather.

When your car won’t start in cold weather, a weak battery is one of the most common possible causes, but it is not the only explanation. A failing alternator, corroded battery connection, starter motor problem or other electrical fault can produce similar symptoms. The best way to identify the problem is to check the battery’s […]