What are the test methods for UPS battery capacity?

UPS battery capacity test method 1. Visual inspection Use visual inspection to check the appearance of the 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 voltage of single battery 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. After the discharge is over, to charge the battery, the charged power should be 1.2 times the discharged power. Make the discharge curve based on the measured data and save it for comparison in the next test. 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: How does the lithium battery work?