Journal · 4 min read · 1 October 2026
How to read a car battery label
A plain guide to the codes on a car battery label — technology, size codes, Ah, CCA and date codes — and the photo that helps us match your battery fast.
The short answer
A car battery label usually shows the voltage (12V), technology (such as AGM or EFB), a size or group code, capacity in amp-hours (Ah), a cold-cranking rating (CCA or EN), and often a manufacture date code. A clear photo of this label is one of the most useful things you can send when requesting a replacement.
What to look for
Technology. “AGM”, “EFB”, “Start-Stop” or “VRLA” (valve-regulated) are the key words. If you see none, it is probably a conventional flooded battery.
Size or group code. Different standards use different codes — for example, US group numbers, European EN/DIN codes, or Japanese JIS codes such as those with letters and numbers combined. These describe the case size and terminal layout.
Capacity (Ah). The energy stored, e.g. 70Ah.
Cold-cranking amps. Often printed as “CCA” or “EN” followed by a number. Values under different standards are not directly comparable.
Date code. Usually stamped or printed on the case or label. Formats vary by manufacturer.
The photo that helps most
When you contact us, a photo showing:
- the full top label of the battery,
- the terminal positions (which side is positive),
- and the battery in its tray
lets us confirm the match much faster. If the battery was replaced before, it may not be the original specification — we still check the vehicle itself.
Learn more in capacity and CCA explained and battery compatibility.
Updated 18 October 2026