What are the precautions for using the battery?

Precautions for the use of the battery 1. Prevent over-discharge After the battery is discharged to the termination voltage, continuing to discharge is called over-discharge. Over-discharge will seriously damage the battery, which is extremely detrimental to the battery's electrical performance and cycle life. The internal resistance of the battery is large when the battery is discharged to the final voltage, and the electrolyte concentration is very thin, especially the plate hole and surface are almost neutral. The internal resistance has a tendency to heat during over-discharge, and the volume expands. When the discharge current is large, it will generate heat. (Even heat deformation occurs). At this time, the lead sulfate concentration is particularly high, and the possibility of survival of the crystal branch short circuit increases. Moreover, lead sulfate will crystallize into larger particles at this time, which will form irreversible sulfation, which will further increase the internal resistance. The charging recovery ability is very poor, and it can't even be repaired. When the battery is in use, it should be prevented from over-discharge, and under-voltage protection is a very effective measure. In addition, because the under-voltage protection of electric vehicles is controlled by the controller, other devices other than the controller, such as voltmeters, indicator lights, and other power-consuming appliances, are directly powered by the battery, and the power supply is generally not controlled by the controller. , Once the electric vehicle lock (switch) is closed, it starts to use electricity. Although the current is small, over-discharge will occur if it is discharged for a long time (1-2 weeks). Therefore, do not open the lock for a long time, and turn it off immediately when not in use. 2. Preventing overcharging The overcharging has been explained above. Overcharging will increase the water loss of the battery, accelerate the corrosion of the grid, soften the active material, and increase the possibility of battery deformation. Should try to prevent the occurrence of overcharging; the selection of the charger parameters should be well matched with the battery, and the operating conditions of the battery in the high temperature season and the changes during the entire service life should be fully known. Do not place the battery in an overheated environment during use, especially when charging, keep it away from heat sources. Cooling measures should be taken after the battery is heated, and the battery can be charged only when the battery temperature returns to normal. The installation position of the battery should be as good as possible to ensure good heat dissipation. If overheating is found, the charging should be stopped, and the charger and battery should be checked. When the battery discharge depth is shallow or the ambient temperature is high, the charging time should be shortened. 3. To prevent short-circuit, when the battery is in short-circuit state, its short-circuit current can reach hundreds of amperes. The stronger the short-circuit contact, the greater the short-circuit current, so a large amount of heat will appear in all the connections, and the greater the heat in the weak link, the connection will be fused and a short-circuit phenomenon will occur. Explosive gas (or explosive gas accumulated during charging) may appear locally in the battery, and sparks appear when the connection is fused, which will cause the battery to explode; if the battery is short-circuited for a short time or the current is not particularly large, the connection may not be caused There will be fusing phenomenon, but the short circuit will still cause overheating, which will damage the adhesive around the connecting strip, leaving it with hidden dangers such as liquid leakage. Therefore, the battery must not be short-circuited, and special care should be taken when installing or using it. The tools used should be insulated. When wiring, electrical appliances other than the battery should be connected first, and there is no short-circuit after inspection, and finally the battery should be connected. The wiring is standard. It should be well insulated to prevent rupture due to overlapping pressure. 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: Which types of fuel-powered batteries? How does it work?