As the recent outdoor temperature is getting lower and lower，Vehicles will become more difficult at low temperature。The reason is that the electrolyte in the battery is relatively low at low temperature and high resistance，So the power storage capacity at low temperature is relatively poor。You can say this，Give the same charging time to the battery，less electricity that is charged in high temperature at low temperature，This can easily cause insufficient power supply in the car battery，At this time, we should pay attention to the value of the car battery，Especially in winter。
Under normal circumstances，The service life of the battery is about 2 ~ 3 years，But the use time is more than 5 to 6 years.，The key lies in your usual habits and the degree of importance to the maintenance of battery。The reason why we pay attention to it，Is because the battery belongs to consumables，When it fails or the service life is end，Basically, there will be no obvious threshold，The most direct manifestation is that the vehicle suddenly can't hit the car after a period of parking，Then you can only wait for rescue or seek help from others。To avoid the occurrence of the above situation，Let me introduce to you how to check the health status of the battery。

1. Look at the observation port

At present, more than 80%of the maintenance -free batteries are equipped with a power observation port。The color that can be seen in the observation port is divided into three types: green、yellow and black。Green represents seabet loginsufficient electricity，Yellow represents slightly losing electricity，Black means that it needs to be replaced.。According to the different design of the battery manufacturer，There may be other battery observation forms，For details, please refer to the label prompt on the battery。Here I remind you，电瓶观察口的电量显示仅供参考，Don't believe it，It is also necessary to comprehensively judge the status of the battery according to other ways of inspection。

This inspection generally needs to be performed at the maintenance station with the help of special equipment，But Uncle Mao thinks it is worth it，Because this test is relatively simple and direct，The status of the battery can be displayed intuitively by numbers。
I can measure the voltage of the battery through the battery measuring meter or universal table。Under normal circumstances，The vacuum voltage of the battery is about 13 volts，Full load voltage generally does not be lower than 12 volts。Battery voltage is low，There may be a situation where the vehicle is difficult or unable to start，If the battery maintains a low voltage state for a long time，Will report it early。
While checking the battery voltage，We also need to refer to the power generation of the vehicle generator，Car with a higher mileage，The carbon brush inside the generator will shorten，Power generation has decreased，It cannot meet the normal charging of the battery，At this time, you should consider replacing the generator carbon brush to solve it Low voltage.

Observe whether there are obvious expansion and deformation or drum bags on both sides of the battery。Once this happens，则代表电瓶的寿命已尽过了一半，At this time, you should be prepared to be prepared for replacement。Uncle Cat emphasized here: It is normal for the battery to have a slight expansion and deformation after a period of use，Don't replace it because of this slight deformation，Spend an injustice。But if the drum bag is obvious, seabet ioyou need to replace it，To avoid the situation of the vehicle's lying nest。

Observing whether there are some white or green -like powder -like objects around the battery pile head，In fact, those are the oxides of the battery，Good quality or new batteries generally do not easily appear these oxides，Once it appears，It means that the performance of the battery has begun to go downhill。如果这些氧化物不及时清除的话，It will cause insufficient power generation of generators，Make the battery at a loss state，In severe cases, it will cause early scrap of the battery，or can't get a car。
The above four check methods introduced by you，It is obviously inaccurate to judge the health of the battery to judge the health status of the battery，It needs to be comprehensively judged together to be more accurate。If your battery reflects the above situation at the same time，Then change it as soon as possible。

Let me briefly introduce some precautions about battery，If you can do the following points，To ensure that your battery life is extended to double is not a problem。
Seabet
When the parking is waiting (the state of flameout)，Should avoid using high -power electrical appliances for a long time。For example: driving light、Use seats to heat or listen to sound。
2. Avoid excessive discharge
Forgot to turn off the lights and find that the vehicle is out of power the next day，This happens very destroying the battery，Even if it is full again，It is difficult to return to the previous state。
3. Avoid parking vehicles for a long time
If the parking time exceeds one week，It is recommended to disconnect the negative electrode of the battery。
4. Regular charging maintenance
If possible, you can remove the battery every half a year，Charged with a charger，Slow charging method，It can be charged for a few hours。
5. Clean the battery regularly
Keep the surface of the battery clean，Regularly clean up the battery pile head oxide。If aerobic agents seabet loginare found，Remember to rinse off with boiling water，Clean the terminal of the battery at the same time，Put of oil and protect it for protection，Guaranteed to start reliability，Extend the battery life。
6. Optimize the car circuit
You can replace the lighting of the vehicle with a more energy -saving LED light source。You can also consider adding a rectifier to the car to protect the vehicle's circuit，This can play a good stable voltage effect。
Car battery is always a consumable，It will have a life after all。Car owner friends should pay more attention to the battery of the vehicle，Check the battery condition regularly，Especially before the winter arrives。We can extend its life through the correct operation method and usage habits，to reduce unnecessary trouble。