The battery is the power source of the car，Mainly used to power the car starter and various electrical equipment during startup，It is a starter battery。Currently，Cars basically use lead-acid batteries，That is, using dilute sulfuric acid as the electrolyte，The active materials participating in the electrochemical reaction on the plate are lead dioxide and lead。

In order to meet the needs of starting and electrical equipment，When replacing a new battery，The capacity and rating of the new battery must not be lower than the original battery，And the size of the replaced battery must also be suitable for installation。There are many brands of batteries on the market，Follow xsjiaoliu，Know more and more complete car knowledge in advance。Mainly VARTA (formerly Delphi)、ACDELCO、Panasonic(Panasonic)、Sail、Unification、GS、 Original imported Korean rocket、Yuasa and others。The batteries produced by various manufacturers also have different labels。

The models of lead-acid batteries used in automobiles are named according to certain standards，The battery models used in the domestic market are mainly in accordance with national standards and Japanese standards、Named by German standards and American standards, etc.。

Take the battery model 6-QAW-54a as an example，Instructions are as follows:
1.6 means composed of 6 single cells，The voltage of each cell is 2V，That is, the rated voltage is 12V；

2.Q represents the purpose of the battery，Q is the car starting Seabetbattery、M is motorcycle battery、JC is a ship battery、HK is aviation battery、D stands for electric vehicle battery、F stands for valve regulated battery；

3.A and W indicate the type of battery，A represents dry-charge battery，W stands for maintenance-free battery，If not marked, it means ordinary battery；

4.54 indicates that the rated capacity of the battery is 54Ah (fully charged battery，The amount of electricity output by the battery when the battery is discharged at room temperature and discharge current at a rate of 20h for 20h)；

5.The subscript a indicates the first improvement to the original product，Add the subscript b after the name to indicate the second improvement，And so on。
Note: ①Add D after the model number to indicate good low-temperature starting performance，such as 6-QA-110D。
   ②Add HD after the model number to indicate high vibration resistance type.
   ③Add DF after the model number to indicate low temperature reverse installation，such as 6-QA-165DF。

In 1979，Japanese standard battery model is represented by Nippon N in Japan，The following number is the size of the battery slot，Indicated as close to the rated capacity of the battery，such as NS40ZL:

1. N represents Japanese JIS standard;
2. S means miniaturization, that is, the actual capacity ratio is 40 Ah is small, 36Ah;
3. Z means better starting discharge performance under the same size，S means that the pole terminals are thicker than batteries of the same capacity，such as NS60SL；
Note: Generally speaking, the positive and negative electrodes of batteries have different diameters，Avoid reverse battery polarity。The diameter of the tapered terminal is shown in Table 1。
4. L means the positive pole is on the left、R means the positive pole is at the right end，such as NS70R。(Note: Viewed from the direction away from the battery poles)

With model number 544 34 battery as an example, the description is as follows:
1． The number starting with 5 indicates seabet mythat the battery’s rated capacity is below 100Ah；The first 6 indicates that the battery capacity is between 100Ah and 200Ah；The number starting with 7 indicates that the rated capacity of the battery is above 200Ah。for example 544 34 battery rated capacity is 44Ah; 610 17MF battery rated capacity is 110 Ah；700 27 battery rated capacity is 200 Ah.
2.The last two digits of the capacity indicate the battery size group number。Give a few examples，As shown in Table 4。
3.MF means maintenance-free type.

With model number 58 430（12V 430A 80min) battery as an example, the description is as follows:

1.58 indicates the battery size group number, as shown in Table 5.
2.430 means the cold starting current is 430A.
3.80min means the battery reserve capacity is 80min。   
4.American standard batteries can also be expressed like this: 78-600，78 represents the battery size group number，600 means the cold starting current is 600A。
Under maintenance of the car，Battery maintenance is also very important，If you develop bad usage habits，Will shorten the service life of the battery or cause damage。Battery life is generally 2 to 3 years。If the user privately installs some electrical appliances that were not originally available，Such as subwoofer, etc.，It will cause excessive use of the battery。

Now，There are more and more electric devices in cars，So，When car owners use these electric equipment，Try not to overload the battery。Take electric windows and sunroofs as an example，The owner should complete the lifting and closing of the engine before shutting down，Because if the engine stalls，will stop generating electricity，Raising or lowering the windows at this time will increase the load on the battery，Easy to cause damage to the battery。

The same goes for car lights，If you want to turn off the engine，No special need，Turn off the headlights first，Then turn off the flame，When starting the car at night, you should start it first and then turn on the headlights，Know everything inside the car。Minimize damage to the battery。If the seabet mybattery is running when the engine is stopped，Be sure to prevent battery loss，Because it is easy to cause damage to the battery if it loses power，If the power loss is serious，The battery will be scrapped in advance。(The content of the article comes from the Internet，If copyright is involved, please contact us to delete)