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How to Read AGM, EFB and 12V Battery Labels

Read the existing battery chemistry, BCI group, CCA, terminal layout and hold-down. Start-stop systems and battery-management software can change the replacement requirements.

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Practical starting point

Read the existing battery chemistry, BCI group, CCA, terminal layout and hold-down. Start-stop systems and battery-management software can change the replacement requirements.

What to check first

Read the existing battery chemistry, BCI group, CCA, terminal layout and hold-down. Start-stop systems and battery-management software can change the replacement requirements.

Use the owner manual for your exact US-market model year, engine and equipment. A similar car can use a different service interval or part.

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Next steps

Do not substitute flooded, EFB or AGM chemistry based on size alone. Ask whether registration or relearn is required after installation.

  1. Identify the exact vehicle and current equipment.
  2. Read the manufacturer’s current service and parts information.
  3. Record what was checked or replaced, including date and mileage.

Find the vehicle-specific answer

Search sourced 2025 vehicles or check a maintenance schedule. Other years need their own manual; the 2025 data is not copied across years.

Common questions

Can I use this for every model year?

No. Verify the exact model-year manual and equipment.

Does a matching size prove a part fits?

No. The OEM catalog and the product manufacturer’s application information must agree.

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