
Varta battery production date is located on the stamped code between the positive and negative terminals of the battery. The code on the stamp indicates the production date. The maintenance methods for car batteries are as follows: Avoid prolonged parking: When you find that the vehicle is not running for a long time, the battery automatically discharges while parked. When the owner wants to use the car, the battery may be severely discharged and unable to function properly. Therefore, it is recommended that if the car is not used regularly, start it once a week and drive it for a while to ensure the battery always has sufficient charge. Regular inspection: The lifespan of a vehicle battery is typically 3 to 4 years. High-end cars have more electronic systems, which relatively shortens the battery's lifespan. Therefore, regularly measuring the battery's charge retention can help maintain it in optimal working condition.

Last time when I helped my neighbor replace a Varta battery, I also researched this. The manufacturing date is usually engraved on the battery's top cover or a label on the side, which is a circular sticker with a four-digit code consisting of letters and numbers. For example, 'Y9A2' means it was produced in the second week of January 2022. The key is to look at the last two digits representing the year, while the preceding letters indicate the month and week number. Some newer battery models even directly print the 'MFD date' next to the barcode. The date code on the AGM battery I replaced in my car was located next to the negative terminal post, and I had to crouch down to see it clearly. If you really can't find it, you can also check the manufacturing information by looking up the serial number on the warranty card.

Last time I saw the mechanic check it like this: Varta battery date codes are usually on the case, typically located on the top edge or near the terminals on the side. The coding rule is that the first letter represents the month (A to L corresponding to January to December), the second digit indicates the last digit of the year, and the last two digits are the production week. For example, code C34 means it was produced in the 4th week of March 2023. Note that the laser engraving on new batteries is relatively shallow, so you need to use a flashlight to see it. Also, the location varies slightly between different series. EFB batteries often have the date on the positive terminal side, while AGM series are usually printed on the corner of the top label.

Based on my experience of replacing three Varta batteries, the most noticeable feature is the oval sticker with a QR code on the top. The 12-digit code starting with 'PW' holds the key: digits 3 to 6 indicate the production date. For example, if you see 'PW1823A123', the '1823' means it was manufactured in the 18th week of 2023. If there's no sticker, check the embossed code on the battery case, usually near the handle. The first letter represents the month in sequence (A=January), followed by the last two digits of the year. I remember the last battery I replaced had 'H22' stamped on it, meaning it was produced in August 2022.


