Cold weather can really hurt the lifespan of your battery because it has to work so much harder in freezing temperatures. A regular 12 volt battery maintains about 40% of its capacity at 0 degree F. Most engines won’t start when cranking voltage drops too far below 12 volts, and a battery loses some of its available voltage and cold cranking amps (CCA) as it ages. So it’s a good idea to take precautions and check your battery regularly.
- Check the connections and cables running to and from your battery. Make sure connections are tight and clean.
- Have the battery tested to make sure it has sufficient capacity and is new enough to handle frigid temperature starting, heavy electrical demand. Install a fresh battery if needed.
- Make sure the alternator is operating at full capacity. This keeps the engine running, operates lights, windshield wipers and the heater fan while keeping the battery charged.
Cold cranking amps (CCA) is the amount of current a battery can provide at 0°F (−18°C). The rating is defined as the current a lead-acid battery at that temperature can deliver for 30 seconds and maintain at least 1.2 volts per cell (7.2 volts for a 12-volt battery). In other words, CCA/cold cranking amps determine how much power is available to start the car.
For more info on battery maintenance, call Bridge St. Tire & Alignment in Weymouth, MA at (781) 340-9500