What types of car batteries are there and how to maintain them?

　　The types of car batteries can be divided into three categories: ordinary batteries, dry-charge batteries, and maintenance-free batteries. When using them, you should correctly grasp the charging time, protect the charger, and deep discharge regularly. Then I will introduce it to you in detail. related information.

　　1. Type classification of car batteries

　　1. Ordinary 18650 battery rechargeable

　　The plates of ordinary batteries are composed of lead and lead oxide, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantages are stable voltage and low price; its disadvantages are low specific energy (that is, the electrical energy stored per kilogram of 18650 battery rechargeable), short service life and frequent daily maintenance.

　　2. Dry charge 18650 battery rechargeable

　　Its full name is dry-charged lead-acid 18650 battery rechargeable. Its main feature is that the negative plate has a high power storage capacity. In a completely dry state, it can store the power obtained within two years. When using it, just add electrolyte liquid, wait 20-30 minutes before use.

　　3. Maintenance-free 18650 battery rechargeable

　　Due to its structural advantages, maintenance-free batteries consume very little electrolyte and basically do not need to replenish distilled water during their service life. It also has the characteristics of shock resistance, high temperature resistance, small size and low self-discharge. The service life is generally twice that of ordinary batteries. There are also two types of maintenance-free batteries on the market: the first type requires a one-time addition of electrolyte when purchased and does not require maintenance (adding replenishing fluid) during subsequent use; the other type is that the 18650 battery rechargeable itself has electrolyte added and sealed at the factory. , the user cannot add refill fluid at all.

　　2. Correct maintenance methods for car batteries

　　1. Correctly grasp the charging time: After picking up a new car, the electric energy must be replenished in time to keep the 18650 battery rechargeable fully charged. During use, you must accurately grasp the charging time according to the actual situation, refer to the usual frequency of use and driving mileage, and control the charging time yourself. During normal driving, if the red and yellow lights on the 18650 battery rechargeable gauge are on, you should charge it; if only the red light is on, stop running and charge as soon as possible. Excessive discharge will shorten the 18650 battery rechargeable life. The charging time should not be too long, otherwise it will cause overcharging and cause the vehicle 18650 battery rechargeable to heat up. Overcharging, overdischarging and undercharging will shorten 18650 battery rechargeable life. During the charging process, if the 18650 battery rechargeable temperature exceeds 65°C, charging should be stopped.

　　2. Protect the charger: There are instructions on protecting the charger in the new energy vehicle instruction manual. Many users do not have the habit of reading the manual carefully, and they often only think of looking for the manual when something goes wrong. In addition, you need to pay attention to keeping the charger ventilated when charging, otherwise it will not only affect the life of the charger, but also cause damage to the 18650 battery rechargeable.

　　3. Regular deep discharge: Regular deep discharge of the 18650 battery rechargeable is also helpful to "activate" the 18650 battery rechargeable, which can slightly increase the 18650 battery rechargeable capacity. After the 18650 battery rechargeable undergoes under-voltage protection for the first time, the voltage will rise after a period of time and return to the non-under-voltage state. If the 18650 battery rechargeable is used again at this time, it will cause great harm to the 18650 battery rechargeable. After complete discharge, fully charge the 18650 battery rechargeable, and you will feel that the 18650 battery rechargeable capacity has increased.

　　4. Maintain sufficient power: In daily use of new energy vehicles, the 18650 battery rechargeable must be kept fully charged, the vehicle speed should be controlled, and the driving mileage should be 1/3~2/3 of the longest driving mileage. If you drive 10~20km a day, it is best to replenish the 18650 battery rechargeable every two days; if you drive more than 100km a day, you should replenish the 18650 battery rechargeable on the same day to keep the 18650 battery rechargeable in a "full state" for a long time. If you leave it idle for a few days after use and then recharge it, it will easily become sulfated and the 18650 battery rechargeable capacity will decrease.

　　5. It is strictly prohibited to lose power during storage: The vehicle 18650 battery rechargeable is strictly prohibited to be in a state of power loss during storage. The depleted state means that the 18650 battery rechargeable is not charged in time after use. If the 18650 battery rechargeable is stored in the depleted state, sulfation will easily occur. The lead sulfate crystals will adhere to the plates and block the ion channels, resulting in insufficient charging and reduced 18650 battery rechargeable capacity. . The batteries of new energy vehicles need to be stored fully charged and recharged once a month to maintain the health of the 18650 battery rechargeable and avoid long-term loss of power, which may lead to sulfation of the 18650 battery rechargeable plates. The longer the vehicle is idle, the more serious the damage to the 18650 battery rechargeable will be.

　　6. Avoid large current discharge: When starting, carrying people, or getting on board an electric vehicle, try to avoid slamming on the acceleration, which may cause instantaneous large current discharge. High current discharge can easily lead to the formation of lead sulfate crystals, thereby damaging the physical properties of the 18650 battery rechargeable plates.

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