FREQUENTLY ASKED QUESTIONS (FAQs)
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Frequently Asked Questions about Automotive Batteries |
What is Reserve Capacity (RC)? |
A battery's Reserve Capacity represents the length of time the battery can maintain the vehicle's electrical needs in the event the alternator fails. Battery Council International defines Reserve Capacity as a measure of the time (in minutes) a lead-acid battery can deliver 25 amps at 80 degrees F and maintain terminal voltage of at least 1.75 volts/ cell. |
How can I determine what is the correct battery for my vehicle? |
Consult your vehicle's owner's manual. It will provide the vehicle manufacturer's group size and CCA rating requirements for your car. Or, ask your battery retailer to refer to his battery application materials for recommended fitment. Remember: Never use a battery with a CCA lower than the manufacturer's recommendation. Also, whenever available, a battery with a higher CCA is more capable of providing for the electrical needs of older vehicles, and will not adversely affect the vehicle's electrical system |
What effect does extreme cold have on my battery? |
Cold temperatures dramatically reduce the effectiveness of chemical reactions within the battery, while increasing the battery's internal resistance. Both of these cause a reduction in cranking power as temperatures drop. Batteries left in a discharged state are also susceptible to freezing, which damages internal components and containers. Cars require an increased amount of cranking power in cold weather, due to the fact that motor oil is thicker and makes engines harder to crank |
What effect does extreme heat have on my battery? |
Heat is the number one cause of battery failure. Extreme heat causes the water in the battery's electrolyte to evaporate. Further, heat causes a battery's positive plate grids to corrode more rapidly. Both of these conditions are detrimental to the long-term life of a battery. |
How should I maintain my automobile battery? |
Modern automotive batteries need little attention. If your battery has removal vents, checking the water level and adding good drinking-quality water as necessary to maintain the level at the bottom of the vent wells will help extend the life of the battery. (Be careful never to overfill, as this will cause acid to be expelled from the vents during normal battery cycling.) Check both terminals regularly for corrosion and tight connections. (If necessary, clean with baking soda and water.) |
What causes a battery to fail? |
Heat, vibration and malfunctioning vehicle electrical systems are the largest contributors to battery failures. |
How do I jump-start a car with a dead battery? |
Remember: All batteries contain acid and can cause injury if not regarded as dangerous. |