Battery Reference

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PrintCold Cranking Amps (CCA)

CCA is a rating used in the battery industry to define a battery’s ability to start an engine in cold temperatures. Generally speaking, it is easier to start an engine in a warm environment than in a cold one. The rating refers to the number of amps a 12-volt battery can deliver at 0°F for 30 seconds while maintaining a voltage of at least 7.2 volts. A high CCA battery rating is especially important in starting battery applications, and in cold weather. The higher the CCA rating, the greater the starting power of the battery.

 

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Reserve Capacity (RC)

RC is a general indicator of how long a new, fully charged battery can continue to operate essential accessories if the vehicle’s alternator fails. It identifies how many minutes the battery can deliver a constant current of 25 amps at 80°F without falling below the minimum voltage.

 

 

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Amp Hour (AH)

An amp hour (AH) is a rating usually found on deep cycle batteries. The Amp Hour (AH) specification provides a measurement of battery capacity, is an indicator of how much energy is stored in a battery. The standard rating is an Amp rating taken for 20 Hours. Should the battery be rated at 100 amp hours, it probably should be able to deliver five amps for twenty hours and with 20 amps for five hours and so forth.

 

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