The size and model of the car battery is marked on the lower left corner of the battery. If the model of the battery is 6-QAW-54a, the specific meaning is as follows:
1. The first digit is a number, which means the number of single cells of the battery. The number 6 indicates that the battery has 6 single cells. The rated voltage of a single cell is 2V, and the voltage of the battery is 12V;
2. The second digit is a letter, which means the specific use of the battery. Different uses are referred to by different letters. The letter Q indicates that the battery is for cars. If the letter is M, it means that the battery is for motorcycles;
3. The third and fourth digits are letters. The meaning of these two digits refers to the type of the battery. The letter A indicates that the battery is a dry-charged battery, and the letter W indicates that the battery is a maintenance-free battery. If these two digits are empty, Indicates that the battery is an ordinary battery;
4. The fifth and sixth digits are numbers. These two digits refer to the rated capacity of the battery. If the number is 54, it means that the rated capacity of the battery is 54 amps;
5. The seventh digit is a lowercase letter. The meaning of this letter refers to the number of improvements of the original product. This digit is also called the corner mark. The corner mark a indicates that the battery is improved for the first time on the basis of the original product. If the corner mark If it is b, then the battery has been improved for the second time. The further the letter goes, the more times the battery has been improved.
When buying a battery, car owners should choose a brand. They don't need to deliberately choose a big brand, but they should choose a better reputation, so that the quality will be better. It is recommended to go to a professional repair shop, or a 4S shop, so that the probability of buying a refurbished battery is relatively small.
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