1. Look for a circular anti-counterfeiting logo on the side or top of the battery. The center of the logo is "human head" and the lower part is cursive "Zhejiang Chaowei".

2. On one end of the battery cover, there is a Chaowei logo (consisting of trademarks and characters), and the word "Chaowei" is printed on the sealing belt of the box.

3. In the middle of the upper cover of the battery is a certificate label with a diameter of 3 cm, and the last two digits of the certificate code of the same group of batteries are continuous.