Explain how to use batteries

(1) The relationship between capacity and temperature: As the ambient temperature increases, the battery capacity will increase within a certain range. Too low temperature will cause negative sulfate, and too high temperature will accelerate the corrosion of the grid and the loss of water in the battery. (2) The relationship between float pressure and temperature: The formula for calculating float pressure at different temperatures is VTu003d(2.2~2.27)-(t-25)×0.03. If the floating charge pressure is too high, the floating charge current will increase, which will accelerate the corrosion rate of the power grid and reduce the battery life. If the floating charge pressure is too low, the battery cannot maintain the charged state, causing sulfation, reducing the capacity, and reducing the battery life. (3) The relationship between average charging pressure and temperature: The calculation formula of average charging pressure at different temperatures is VTu003d(2.30~2.35)-(t-25)×0.05. The specific charging pressure is determined by the manufacturer. (4) The relationship between life and temperature: T25 u003d T design × 2 (T actual -25)/10. An increase in temperature will damage the battery and reduce its service life. Valve-controlled battery charging and discharging system (1) Constant current and voltage limiting charging adopts I10 constant current charging. When the terminal voltage of the battery pack rises to (2.30~2.35v)×N voltage limit value, it is automatically or manually converted to constant voltage charging. (2) Constant voltage charging is at (2.30~2.35V)*N at constant voltage charging, and the charging current of one to 2 blocks is gradually reduced. When the charging current drops to 0.1 block, the countdown of the current charging device starts, and when the set countdown ends, The charging equipment will automatically or manually run until the normal floating charge floats, and the appropriate voltage control *N (2.23~2.28V). (3) Auxiliary charging can not compensate the battery capacity loss caused by the self-discharge, leakage and leakage of the valve-controlled battery in order to compensate for the insufficient charging caused by improper adjustment of the floating charging flow during operation. According to the time to be set (usually 3 months), the charging device will automatically or manually perform the constant current and voltage limiting charging and constant voltage floating charging process. Fully charge the battery at any time to ensure safe and reliable operation. Check the discharge valve-controlled battery for long-term use in float charge voltage and current limited mode or operating mode with limited current and voltage and unlimited. It is impossible to judge the existing valve-controlled battery capacity, internal water loss or cracking, whether it is only by checking the discharge, the battery problem. (1) When the system has only one set of batteries, a set of valve-controlled batteries cannot be withdrawn from operation, nor can the discharge be verified completely, only 50% of the rated capacity can be released. During the discharging process, the battery terminal voltage should not be lower than 2V×N. Repeat 2~3 times, the battery capacity can be restored. Battery defects can be found and dealt with. If a spare valve-controlled battery is used as a temporary substitute, the valve-controlled battery can be used for full check valve discharge. (2) Two groups of valve-controlled batteries When the system has two groups of valve-controlled batteries, the first group of valve-controlled batteries can be completely checked for discharge. I10 current is used for constant discharge. When the battery terminal voltage drops to 1.8v×N, stop discharging. After an interval of 1 to 2 hours, the I10~2I10 current is used for constant current and voltage limiting charging. Repeat 2~3 times, the problem of the battery can also be found, and the capacity can be restored. If after 3 full inspections and charging, the battery capacity is less than 80% of the rated capacity, it can be considered that the service life of the group of valve-controlled batteries has reached the replacement time. (3) For newly installed or overhauled valve-controlled batteries that have a verification discharge cycle, a sufficient verification discharge test shall be carried out. Thereafter, verification tests will be conducted every two to three years. After 6 years of operation, valve-controlled batteries should be checked and discharged once a year. 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: Thirteen ways to identify true and false lithium-ion batteries