Brand model: Huawei mate book 15
System: Windows 1 1
48V 12A cannot be charged with 20A. Because the current is too large, it will damage the battery and even fail to charge it. If the charger parameters are not suitable, it is easy to charge or expand the battery. Excessive current will affect the service life and cause battery failures, such as expansion and electrolyte overflow.
Note: When connecting the charger, plug in the charging socket at the rear of the electric vehicle first, and then plug in the socket. Unplug the charger in the opposite order to charge it. Pull the plug on the socket first, and then pull the plug on the electric car. If you don't have a charger, you can use it in an emergency, but you'd better carry it with you to avoid unnecessary damage to the battery.
Are 20A and 23A chargers universal?
The battery capacity of electric vehicles should be 23ah and 20ah. Charge the 23ah battery with the charger of 20ah battery. The battery capacity is almost the same, and it can be used without any influence.
48V 20a charger can be charged 12a.
The 48V20A charger cannot charge the 48V 12A battery.
Because the output power of the charger is higher than the receiving power of the battery, it is easy to cause battery damage.
The battery specification of electric vehicle battery is 48V20A, and its charging power is about180 W. The charging power of an electric vehicle determines the charging speed and charging time of the electric vehicle. The higher the power of the charger, the faster the charging speed. However, the charging power should be within the prescribed range of electric vehicles. If the charging power of the charger is greater than the power that the battery can accept, it may cause damage to the battery.
Extended data:
Matters needing attention in electric vehicle charging:
Check the liquid level position of electrolyte regularly, and replenish it immediately when it is lower than the minimum liquid level scale line. If you continue to use it in this state, it will not only accelerate the aging of the internal parts of the battery, shorten the service life of the battery, but also cause an explosion.
Do not place the battery near an open flame, and do not cause sparks due to short circuit of wires near the battery.
When charging the battery, please read the warning signs of the battery carefully and take the battery out of the machine.
The electrolyte of the battery is corrosive and cannot be directly contacted. Once the eyes, skin and clothes are stained with electrolyte, please wash them thoroughly with water immediately. If the electrolyte enters the eyes, you should go to the hospital for necessary treatment in addition to washing with water immediately.
Difference between 48v 12a and 20a for Electric Vehicles
There is no difference in performance between 48V 12A battery and 48V20A battery. The difference lies in capacity. The price of 48V20A is about higher than that of 48V 12A in 50 yuan.
The battery capacity of 20Ah is 8 more than that of 12Ah. If the battery is discharged with 1A current, 12Ah can discharge12h, 20Ah can discharge for 20h, and then discharge for 8h. If 2A is used for discharge, 12Ah can be discharged for 6 hours, 20Ah can be discharged for 10 hours, and discharge for 4 hours more.
Extended data
Discussion on the selection method of electric vehicle battery
1, check whether the product identification of electric vehicle battery is complete. Including the manufacturer's name, product specification and model, manufacturing date and trademark; Check whether the internal and external signs are consistent, especially whether the product itself has eye-catching signs and production dates.
2. Pay attention to the appearance of electric vehicle battery. Check for deformation, cracks, scratches and leakage marks. The battery terminals shall be clean and free from rust, and the signs shall be clear.
3. Pay attention to the rated capacity marked on the battery products of electric vehicles. The larger the rated capacity of the battery, the longer the battery discharge time. It is best not to buy batteries without rated capacity, but pay attention to whether they are special for electric vehicles.
4. Buy brand batteries from well-known enterprises and large enterprises. Batteries are generally provided by professional battery manufacturers. Different brands and manufacturers produce different batteries with different quality and different prices. Well-known large enterprises have large scale, strong technology, good after-sales service and guaranteed battery quality.
5. Choose an automatic control smart charger that matches the battery. A suitable charger can automatically adjust the charging size and time, which is beneficial to prolong the service life of the battery.
References:
Baidu Encyclopedia: Electric Vehicle Battery
Can 48v 12a fully charge the 48v20a battery?
It can be fully charged, but it is not recommended to use it for a long time, because the charger of 12AH has less lamp-turning current than the charger of 20AH. If the leakage of the battery itself increases after aging, and the charging current will not drop to the lamp current of the charger, it will be easy to charge the battery at that time.