What are the markings for start-stop batteries?

[SanNatalie]

Start-stop batteries have specific markings on their exterior, including: st, q85, n55, efb, iss, agm, etc. Start-stop batteries allow the car to automatically shut off when temporarily stopped and restart the engine when the car moves forward, thereby achieving energy savings and emission reduction, lowering tailpipe emissions. The function of the battery is to store electrical energy, supplying power for car starting, ignition, lighting, signals, and audio-visual equipment. Its working principle is: car batteries use lead-acid batteries based on the primary cell principle. When the load is connected, the lead on the negative plate reacts with sulfuric acid to form lead sulfate and lose electrons, while the lead oxide on the positive plate reacts with sulfuric acid to form lead and water, gaining electrons, thus generating an electric current.

[StMargaret]

I have an experienced neighbor who told me there are quite a few markings on start-stop batteries. Those batteries usually have large 'AGM' or 'EFB' printed on them, representing different technology types. There’s also a string of numbers indicating the Cold Cranking Amps (CCA) value, such as 700A or higher, which means the battery can quickly start the engine even in low temperatures. Additionally, the label often has 'Start-Stop' or 'SS' markings, and some brands like Varta or Bosch may include an icon. I remember last time at the battery shop, these markings were all on the top or side stickers, with bright colors for easy recognition. Start-stop batteries are a bit heavier and more expensive than regular ones, but they’re worth it because they can handle frequent engine restarts without failing. When installing, make sure to match the correct type—using the wrong one can damage the system, so it’s best to have a professional technician confirm the specifications.

[McSimon]

From a repair perspective, start-stop batteries do have distinctive markings. Commonly labeled 'AGM' for Absorbent Glass Mat type or 'EFB' (Enhanced Flooded Battery), they're designed for frequent start-stop cycles. The label displays CCA (Cold Cranking Amps) values, typically above 600A, suitable for various vehicle models. Voltage is always marked 12V, with 'Maintenance-Free' indicating no water refilling unlike traditional batteries. These markings are usually on top stickers or side embossing with high-visibility colors for quick identification. When purchasing, always match your vehicle model - never mix with regular batteries to avoid system warnings or failures. I recommend periodic inspection of label integrity to ensure electrical safety.

[SanRiver]

As an experienced driver, I've replaced several start-stop batteries before, and the markings are quite obvious. Usually, there are large letters 'Start-Stop' printed on the label, along with the AGM or EFB type identification. Additionally, the CCA value is crucial as it represents the cranking capability. The markings are typically located on the top or side of the battery, clearly visible on a sticker. Some new batteries also display brand names like Exide. Remember, these designs ensure the battery isn't damaged during frequent vehicle start-stops, so choosing the right one saves money and hassle.