What should lead-acid batteries do when they are not used for a long time?

When lead-acid batteries are not used for a long time: 1. The battery must be fully charged before shelving, and it is generally recommended to recharge the battery within 2 to 3 months if it is fully charged. If possible, it is best to charge 1 to 2 Charge it once a month. 2. When the electric vehicle is not in use, it should be stored in a cool and ventilated room. After the battery pack is fully charged, disconnect the load line. The self-discharge of the lead-acid battery will cause sulphation. If the battery is not recharged for a long time, the capacity will be caused. Recovery is difficult to affect the life, so it is generally recommended to recharge the battery within 2 to 3 months to benefit the battery life. It is necessary to detect the cause of the damage first, use a machine for vulcanization, and open the shell to repair the broken grid. The simple method is to add liquid and charge. (1) Methods and steps ① Use a thin sheet to uncover the soft plastic sheet covering the single battery to expose the sealing valve inside. ②The circular sealing valve is located in the center of the upper surface of the battery box. Generally, there is a small bonnet with a sealing mechanism inside. The sealing mechanism of each manufacturer is not the same. Remove the bonnet and carefully lift out the sealing material inside. At this time, you should pay attention to the sealing material and its sequence. Don't make any mistakes or break the sealing material, and put it in a clean, dust-free plastic bag and seal it for storage. ③After the sealing valve is fully opened, you can see the internal conditions, and estimate the degree of electrolyte drying. ④ Use a glass tube to suck an appropriate amount of distilled water that has been mixed with additives, and pour it into the battery through the sealed port. Note that the amount of water injected into each battery should be as consistent as possible to measure the degree of dryness. If the degree of dryness is severe, more water should be injected. ⑤When water is injected, the single battery should be laid flat, that is, fall down so that the sealing port is in the horizontal direction. The purpose of this is to make the amount of water obtained by each single cell consistent. With the increase of water injection, the sealing port should be gradually Elevate, fill it to a certain extent, stand up the battery to see if the water surface is higher than the electrode plate, stop water injection when it is 5mm above the top of the electrode plate, stand still for a few minutes to observe the water surface, if it remains stable, no more water injection, otherwise continue to add The amount of water should be higher than 5mm. Do not inject too much to prevent obstructing the air circulation in the shell. Finally, record the amount of injection. (2) Precautions ① During the life of the battery, the sealing valve should not be opened casually. The original sealing valve has a fixed valve opening pressure and valve closing pressure. After random movement, the sealing valve does not open and close within the specified pressure range. If it should be opened but cannot be opened, and the closure has not been closed, it loses its proper use. If the pressure is reached but fails to open, the battery casing may be damaged or burst. Frequent opening without reaching the valve opening pressure will speed up the evaporation of the electrolyte and the easy entry of external impurities, both of which can damage the battery. ②Users without professional knowledge should not open the sealing valve casually to prevent the acid mist from overflowing and damaging the eyes or skin. Some electrolytes are mixed with some high-efficiency and long-life additives. When the sealed valve is opened, some easily volatilized components will evaporate in a short time, which changes the electrolyte composition ratio and reduces its efficiency. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What are the factors that may affect the cycle performance of lithium batteries?