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Posts Tagged: cold cranking amps

Cold cranking amps

What’s the definition of cold cranking amps? Battery ratings require time and temperature standards To properly rate a battery’s jumping ability, you have to test it at an industry defined temperature, for an industry defined time period, with an industry defined maximum drop in voltage. Here’s the definition of cold cranking amps: Cranking amps definition Cranking amps (CA) refers to the number of amps a battery can output at 0°F (-17.8°C) for 30-seconds while still maintaining at least 7.2 volts. The reason cranking amps is more important than peak amps … Read More

How many cold cranking amps do you need

How many cold cranking amps should  your battery have The number of cold cranking amps you need is dependent on several things like the displacement size of your engine, the lowest outdoor temperature in your area, and the motor oil viscosity you use. In other words, the larger the engine and the colder the temps, the more cold cranking amps you want in order to spin the engine fast enough to fire up. More cylinders equals more cold cranking amps When you crank a V-8 engine, you’re moving more metal … Read More


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