CCA to Ah

Example of CCA to Ah Calculations

To convert cold cranking amps (CCA) to ampere-hours (Ah), a common approximation is used, though it's important to note that this conversion is not exact due to the different nature of these measurements. A rough estimation often used in the industry is:

Ah≈CCA/7.25A

This approximation can vary depending on the specific battery and its design, but it gives a general idea.

Table of CCA to Ah Conversions

Below is a table showing the conversion of various CCA values to Ah, sorted from smallest to largest.

CCA	Ah
230	31.72
500	68.97
550	75.86
600	82.76
650	89.66
700	96.55
720	99.31
750	103.45
760	104.83
800	110.34
810	111.72
850	117.24
900	124.14
1000	137.93

Convert 100 CCA to Ah

To convert 100 CCA to Ah:

Ah=100/7.25≈13.79 Ah

Convert 800 CCA to Ah

To convert 800 CCA to Ah:

Ah=800/7.25≈110.34 Ah

Convert 1000 CCA to Ah

To convert 1000 CCA to Ah:

Ah=1000/7.25≈137.93 Ah

What Is a CCA?

Cold Cranking Amps (CCA) is a rating used in the battery industry to define a battery's ability to start an engine in cold temperatures. It measures how many amps a 12-volt battery can deliver at 0°F (-18°C) for 30 seconds while maintaining a voltage of at least 7.2 volts. The higher the CCA rating, the greater the starting power of the battery.

What Is an Ah?

An ampere-hour (Ah) is a unit of electric charge. It represents the amount of electric charge transferred by a steady current of one ampere flowing for one hour. Ampere-hours are commonly used to describe the capacity of a battery, indicating how much charge it can deliver over time.