Do you know the maintenance-free lead-acid battery?

　　Author ：Iflowpower – 便携式电站供应商

Maintenance-free lead-acid battery, the biggest feature of as well-known meaning is maintenance. And lead-acid batteries are very small than its electrolyte, basically do not supplement distilled water during service life. It also has the characteristics of high temperature resistance, high temperature, small size, self-discharge.

Of course, it is more expensive than lead-acid batteries. As for the service life, the recommended replacement cycle of the battery is maintained in normal conditions is about 3 years, which is comparable to the lead-acid battery. In order to prevent daily maintenance and maintenance of its exhaust system, it is significantly different from lead-acid battery, so it is theoretically, do not add distilled water or electrolyte.

In addition, the housing for maintenance-free lead-acid batteries is generally closed unless there is professional tools and technology, it is generally unable to overhaul. Although the lead-free lead-acid battery is called maintenance, it is not completely available. It is recommended to check the battery every 30,000 kilometers, and a maintenance per 80,000 kilometers is.

However, the 4S shop or maintenance plant can do less, and the service life of the maintenance battery is relatively fixed, in normal use, 2-3 years will be replaced, and there is nothing to extend Service life. Compared to traditional batteries, the capacitance of the maintenance-free lead-acid battery can operate at ambient temperature of -30 ¡ã C to +60 ¡ã C, and also has fast charging, high current discharge, low internal resistance, and more than 100,000 cycle life. Super long life, etc.

The lead-free lead-acid battery uses a lead calcium alloy grid, and the water dispensing when charging is small, and the amount of water evaporation is low, and the shell is used to use a sealing structure, and the released sulfuric acid is very small, so it is compared to the traditional battery It has the advantages of not adding any liquid, less wire, electric wire corrosion, strong anti-charging capacity, large start current, and long battery storage time. Under normal charging voltages, the electrolyte only has a small amount of gas, and the plate has strong anti-charging capability, and has a small internal resistance, a low temperature starting performance, and is characterized by the long life of conventional battery life. Do not need to add distilled water, under normal circumstances, no need to supplement charging from removal.

However, the proportion of its electrolyte should be inspected during maintenance. Most maintenance-free lead-acid batteries are provided with a hole-shaped liquid (temperature compensation type) ratio, which will change color based on changes in electrolyte specific gravity. Can indicate the storage of the battery and the height of the electrolyte level.

When the indication of the specific gravity is green, it indicates that the charging is enough, the battery is normal; when the indication of the green point is small or black, it indicates that the battery is to be charged; indicating that the eye shows light yellow, indicating that the battery is faulty, repair or Replace. The maintenance-free lead-acid battery can also be supplemented with charging, and the charging method is basically the same as the charging method of the ordinary battery. Each single voltage should be limited to 2.

3-2.4V during charging. Note that charging will consume more water using conventional charging methods, and the charging current should be slightly smaller when charging (5A below).

Fast charging cannot be made, otherwise, the battery may explode, resulting in hurt. When the specific gravity of the battery is maintained, it is displayed as pale yellow or red, indicating that the battery is close to the scrap, even if it is charged, the service life is not long. At this time, the charging can only be used as an emergency weigh.