Battery CCA Calculator
Estimate Cold Cranking Amps (CCA) from Amp Hours (Ah)
Battery CCA Calculator
Estimate Cold Cranking Amps
Results:
Cold Cranking Amps (CCA): 0.00
How to Use the Battery CCA Calculator
Input Amp Hours (Ah)
- Enter the Amp Hour (Ah) rating of your battery.
- This value represents the battery's capacity.
Input Conversion Factor
- Enter a conversion factor, typically between 7 and 10.
- A common value is 7.5, but it varies by battery type.
Get Estimated CCA
- Click "Calculate" to get the estimated Cold Cranking Amps (CCA).
- The result provides an estimate of the battery's cold-starting power.
Battery CCA Fundamentals
Amp Hours (Ah)
Ampere-hour (Ah) is a unit of electric charge, indicating the amount of current a battery can deliver for one hour. It's a measure of battery capacity.
Conversion Factor
- The conversion factor is an empirical value.
- It accounts for the specific chemistry and design of different battery types.
- Ranges from 7 to 10, with 7.5 being a common average.
Key Formula:
CCA = Ah × Conversion Factor
Calculation Formula
Cold Cranking Amps (CCA):
CCA = Ah × Conversion Factor
Example Calculation
For a battery with 100 Ah and a conversion factor of 7.5:
Amp Hours (Ah): 100 Ah
Conversion Factor: 7.5
CCA = 100 Ah × 7.5
CCA = 750 CCA
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