1. First, check the battery packaging and whether the sealing tape has been removed. Once removed, there may be a problem.

2. Check the battery packaging, print the logo, and the handwriting is clear. Generally, the handwritten printing packaging will not be as fine as the original factory.

3. Check the plastic casing of the battery. Is the writing clear and consistent with the new product packaging pattern online? The appearance of new batteries is generally very clean and beautiful, with no abrasives or scratches.

4. Check whether there are signs of wear on the terminal blocks. The positive value is red glue, the negative value is black glue or blue glue, and the color glue is not smooth and flat.

5. Check whether there is leakage or glue overflow at the connection between the upper cover and the plastic shell.

6. You must be careful when answering super cheap batteries, because under normal circumstances, the battery cost difference is not big. The difference of 10 yuan is about 30 yuan compared with other second-tier brand batteries. If A $100 difference is definitely a problem.

7. Looking at the appearance, the original battery generally has a smooth surface without any traces, while the refurbished battery will have some traces of sealant.

8. The authenticity can be determined based on the anti-counterfeiting code.

Extended information:

Purchasing batteries

1. Choose battery products with the "National Inspection-Free", "Chinese Famous Brand" logos and local famous brand battery products. The quality of these products is guaranteed.

2. Select the appropriate battery type and size according to the requirements of the electrical appliance, and purchase batteries suitable for the electrical appliance according to the size and characteristics of power consumption.

3. Pay attention to check the production date and shelf life of the battery, and purchase the battery (new battery). The new battery has good performance.

4. Pay attention to the appearance of the battery, and buy batteries that are beautifully packaged, clean in appearance, and leak-free.

5. Pay attention to the labeling of the battery. The battery brand should indicate the name of the manufacturer, battery polarity, battery model, nominal voltage, trademark, etc.; sales packaging (such as 2 or 4 heat shrink, or hanging tags ) should indicate the Chinese factory address, production date and shelf life, or indicate the expiration date of the shelf life and the number of the implementation standard (generally the national standard GB/T×××××××××).

Do not buy products that do not have a Chinese factory name, production date and shelf life, or products that do not have a shelf life marked on them or that do not comply with standards. When purchasing alkaline zinc-manganese batteries, pay attention to whether the battery model is spelled "alkaline" or "LR."

6. Since mercury in batteries is harmful to the environment, in order to protect the environment, batteries with the words "mercury-free", "0% mercury", and "mercury-free" should be marked on the trademark when purchasing.

Baidu Encyclopedia—Battery