What functions can the BMS of the battery pack?
The BMS have Over-charge protection, Over-discharge protection
EV battery
How to test the capacity of UPS battery?
by：Vglory
2021-03-23
UPS battery capacity test method 1. Visual inspection Use visual inspection to check the appearance of UPS battery for leakage, deformation, cracks, stains, corrosion and loose nuts. 2. Capacity test method The main battery of UPS system is mostly lead-acid maintenance-free battery, and the single battery voltage is 12V. In order to be able to grasp the approximate capacity of the battery pack at any time, it is necessary to conduct a check discharge test. The method is: In the UPS power supply system, turn off the rectifier (UPS input) and allow the battery to directly supply power to the load carried by the UPS. Before and after the battery pack is discharged, the terminal voltage, temperature, specific gravity, room temperature and discharge time of each battery must be measured. Discharge up to 30% to 40% of the rated capacity. 3. Judgment of backward battery The terminal voltage of backward UPS battery is low when discharging, so the backward battery should be measured in the discharged state. If the terminal voltage is the lowest in the three continuous discharge cycles, it can be judged as backward in the group. battery. 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 article: What are the technical parameters of the battery?
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