The so-called positive finger is the location of the battery positive and negative terminals. This is different: the soiled of the sail battery is close to the side of the terminal. If your left is the positive terminal (the right side is the negative terminal) is a dress, if your left side is negative The terminal (the right side of course is the positive terminal) is the reverse. If it is a Japanese and Korean series, the model is generally marked with R or L, R is a dress, and L is a reverse.
Percentage of 1919 is a positive negative electrode to pick up a short-term connection to the vehicle body, saying that the iron wire is easily reversed to cause the vehicle to fire.
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Shenzhen Geerady New Energy Co., Ltd NO.7888, SHENZHEN, CHINA