Mechanics

Battery CCA Calculator

Calculate the recommended Cold Cranking Amps (CCA) for your battery based on engine size and climate.

Enter your engine details to get CCA recommendations

Cold Cranking Amps measures a battery's ability to start in cold weather:

Can I use a higher CCA than recommended?

Yes! Higher CCA is always fine — it just means easier starting. The only limit is physical fit (group size).

What about start-stop vehicles?

Start-stop systems require AGM batteries that can handle many more charge cycles. Use an AGM-specific battery.

Why do diesels need more CCA?

Diesels have higher compression ratios (16:1 vs 10:1) and no spark plugs, so the starter must work harder to initiate combustion.