What are the precautions for the safe use of lithium batteries

For newly-purchased batteries, first check whether the batteries are qualified (including unpacking and confirming whether the batteries are crushed or deformed). If there is a problem, contact the merchant in time to solve the problem. 2. Before charging and discharging the lithium battery in use, it is recommended to test the voltage of each cell of the battery; the cell voltage within 1 month of leaving the factory is about 3.8V, and the highest limit voltage that the cell can accept is 4.25V ( High-voltage battery outside), the minimum limit voltage is 2.75V. When the battery voltage is higher than 4.25V or lower than 2.75V, the charging and discharging function and safety function of the battery may be damaged, which may cause heating, leakage, and flatulence; charge attention When using the 4S battery pack, the temperature range during charging is 0~+45℃; the charging current must not exceed the maximum current indicated in the specification, generally not exceeding 2C; batteries with swelling, deformation, leakage or voltage lower than 7.8V should not be used Charge; the temperature of the battery before charging at room temperature should not exceed 40℃; the upper limit voltage of charging should not exceed 17.48V. The temperature during charging should not be higher than 45℃; it is recommended to use a regular manufacturer and reliable charger, and the battery pack is recommended to be used Charger with balance function. Discharge precautions When using the 4S battery pack, the discharge temperature range is -20~+60℃, remember that the discharge current should not exceed the maximum current indicated in the specification; the lower limit voltage of discharge should not be lower than 11.2V, and the surface temperature of the battery after high current discharge The temperature should be higher than 80℃; do not discharge the battery if the battery is swollen, deformed, leaked, or the voltage difference is ≥100mV. Be sure to remember! ! For the transportation of batteries, the batteries to be transported need to be filled, anti-collision, etc., and beware of severe collisions or vibrations; if any abnormal characteristics of the battery are found, such as the battery plastic sealing edge is damaged, the casing is damaged, and the smell of electrolyte is smelled Do not use the battery because the electrolyte leaks or emits electrolyte odor, there is a safety hazard. Keep away from the fire source. Important tasks: non-professionals should never dissect the battery privately, do not burn the battery or throw the battery into a fire, and do not soak the liquid (such as fresh water, sea water, beverage, juice, etc.), otherwise it may cause an internal short circuit. Cause swelling and battery burning, which must be stopped. In theory, there is no flowing electrolyte in polymer lithium batteries, but if the electrolyte leaks and touches the skin, eyes or other parts of the body, you should immediately rinse the electrolyte with clean water and seek medical attention immediately; lithium batteries have the highest energy density, and They also have many magical characteristics, and we need to make more special safety considerations for them, so it is very important to know these safety issues. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the characteristics and advantages of the new lithium iron phosphate battery as the power core?