1. To prevent overcharging: one is that overcharging of the battery will damage the lead plate, and the other is that the concentration of the electrolyte used increases, which will cause serious damage to the battery. To avoid overcharging, remember how long you need to charge each time you use the power you use. Equipped with a charging socket, the power supply time can be manually adjusted. According to the difference between battery cycle life and floating charge life, in order to extend the life of the battery, charging during use will extend the life of the battery.

　　2. Over-discharge protection: When using the battery, do not discharge before the battery can not supply power. For example, if you are using an electric car, please charge it fully before using it. Make sure that the battery is not nearly exhausted and charge it on time. When the battery is not used for a long time, the battery will be cut off due to self-discharge. Another problem to prevent over-discharge is that the discharge is too fast. Everyone hopes that the electric car runs fast, but I don’t know if this is the biggest damage to the battery.

　　3. Micro-current charging: If the charging time is long enough, it is best to use micro-current charging. Unfortunately, there is no charger on the market that can control the charging current. But in fact, any charging method can realize micro-current charging. It is a method of charging every time it is used up, but it is necessary to prepare a regular charging socket so that the charging time should not be too long and stop charging after a short time. The advantage of this is that the charging is good. Charging power can also be controlled in flow. When the battery is charged when the power is low, the battery itself has a high voltage, and the voltage difference between the charger and the battery is not large, so the current is small when charging, so charging is beneficial to protect the lead plate.