Does Cold Weather Kill Car Batteries. This is a common excuse among service departments and stores when they dont want to replace the battery or alternator. How Cold Weather Impacts Car Batteries.

When temperatures hit 32 degrees the overall capacity of your battery is cut by 20. In normal temperatures your battery will run as it should. In most instances the charge can be affected by cold weather to a great extent since the substances the battery relies on might freeze if the temperature drops below a certain point.
Cold weather can kill your battery by slowing down the chemical reactions that keep it running.
Frigid weather can cause trouble with a cars battery. Freezing weather drains your battery. Power loss with slow chemical reactions and oilengine troubles. Its February which means that winter is still in full swing here in northern Virginia.

