Principle of battery charger

　　There are a large amount of sulfuric acid such as sulfuric acid in the battery. When the power supply is inserted, the current will be electrode ionized through the lead plate (some batteries are not lead), so that the electrical energy is converted into chemical energy; if it is used, the solution will be Converted into electrical energy through the electrode. This is a description in principle. In fact, the real situation is very complicated, and you can refer to relevant professional books.

　　Charging method system: The conventional charging system is designed based on the empirical rules recognized by 1940. Among them, the "Anpei Hours Rules": The number of charging currents shall not exceed the number of time for the battery to be charged. In fact, the speed of conventional charging is limited by the temperature rise and gas generation of the battery during the charging process. This phenomenon is of great significance for the short time necessary for battery charging.

　　Hengli charging method: The Hengliu charging method is to use the method of adjusting the output voltage of the charging device or the method of changing the series resistance with the battery to maintain the charging current. The control method is simple, but because the acceptable current capacity of the battery has gradually decreased as the charging process progresses. In the later stage of charging, the charging current is mostly used for electrolytic water, generating gas, and excessive gas. Essence

　　The constant voltage charging method: The voltage of the charging power supply maintains a constant value at all charging time. As the voltage of the battery end gradually increases, the current gradually decreases. Compared with the Hengliu charging method, its charging process is closer to the better charging curve. Quickly charging with a constant voltage. Due to the low battery power of the battery in the early stages of charging and the large charging current, the current will gradually decrease as the charging is proceeded. Therefore, the system only needs to control the system.

　　This charging method has very few electrolytic water, which avoids the battery overcharge. However, the current current is too large, which has a great impact on the life of the battery, and it is easy to curved the battery plate plate, causing the battery to scrap. In view of this shortcoming, the constant voltage charging is rarely used, and only when the charging power supply voltage is low and the current is large. For example, during the car operation, the battery is charged with a constant voltage charging method.

Read recommendations:

lithium ion golf cart batteries

best portable power station

High Discharge 5C 10C 18650 21700 Lithium Ion Battery Cell

Is it safe to use lithium batteries with high internal resistance and high energy?

Why does the lithium battery burst.12 volt deep cycle marine battery