Where is the production date of the battery?

[ColemanDella]

Battery production dates are generally printed on the surface of the battery, represented by a series of numbers and letters. Since batteries are considered consumable parts under warranty, the warranty periods vary among different brands, typically ranging from 1 year or 20,000 kilometers, as specified in the battery manual. Taking the battery code 3KZ28A1 as an example: 1. The first digit is a number: usually one of the digits 0-9, representing the production year of the battery. In this case, '3' indicates the production year was 2013. 2. The second character is a letter: usually one of the 12 letters A, B, C, D, E, F, G, H, J, K, M, representing the production month, with each letter corresponding to months 1-12 in order. Here, 'K' represents the 10th month. 3. The third character is a letter: indicating the manufacturer of the battery. 'C' stands for Chongqing, while 'Z' represents Zhejiang. In this case, 'Z' means the battery was produced in Zhejiang. 4. The fourth and fifth digits are numbers: representing the production day. Here, '28' indicates the 28th day. 5. The sixth and seventh characters are a combination of letters and numbers: representing the batch number of the battery. 6. In summary: This battery was produced on October 28, 2013, in Zhejiang, and belongs to the first batch.

[Alice]

I've changed batteries several times before, and the production date is usually printed on the label of the battery casing, mainly on the top, side, or near the positive and negative terminals. When looking for it, you can check carefully—there will be a combination of letters and numbers on the label, such as a format like 'K23.' The first letter represents the production year (e.g., K stands for 2025), and the following numbers indicate the month or week. Knowing the production date is crucial because it helps you determine how old the battery is, preventing you from wasting money on outdated stock. Generally, a battery lasts about two to three years. I always take a quick glance during maintenance to avoid sudden breakdowns. Common brands like Varta or Bosch have this marking, and checking it before driving can help prevent the hassle of running out of power midway.

[MacCatherine]

The production date of the battery is directly printed on the battery case, usually on a small label near the top or terminals, in the form of a code. From my experience, a common example is 'H24'—where 'H' stands for the year 2024, and '24' represents the 24th week, though this can vary by brand. Be careful when locating it, as the label might be covered in dust; cleaning the area can make it easier to find. Knowing the date is crucial for maintaining battery health—avoid purchasing old stock, as it can affect cold-start performance. I also recommend regularly checking the terminals for corrosion, as this is related to battery lifespan. The process is simple: just wipe the battery surface with a soft cloth to get a clear view. If you're unsure about the code's meaning, ask a mechanic—they deal with these details regularly.

[LeAaliyah]

The production date is on the battery case label, usually in a coded format. For example, with BMW's Varta batteries, 'G22' means manufactured in 2022. Just check it casually before routine maintenance. Remember, battery age directly affects reliability—don't cheap out on stock older than six months. Checking the date first when replacing the battery yourself is common sense.