How to choose a lead-acid UPS battery

1. Are there many types of sealed lead-acid batteries for UPS batteries? The processing points and performance characteristics of different types of batteries are different; the fixed type batteries equipped with UPS are wet-charged products, which require low self-discharge and float. Long charging life and strong overcharge resistance; while the starter battery for automobiles is a ready-to-use product, which focuses on the dry-charge high-current start-up performance and cycle number performance; therefore, the first thing to do when choosing a lead-acid battery for a UPS system Pay attention to whether it is a dedicated battery for UPS. 2. Judging whether the battery is good or bad. The open circuit voltage of a lead-acid battery has a great relationship with the proportion of internal acid. For batteries of different series and the same capacity, the higher the open circuit voltage, the higher the proportion of sulfuric acid after formation, and the less resistant to corrosion and battery life. Relatively short. 3. Charge and discharge test Whether the capacity of the lead-acid battery reaches the nominal value can be detected by the charge-discharge experiment. After the newly purchased lead-acid battery continues to be charged for more than 8 hours, discharge it with a resistive load with a certain resistance. In the experiment, the terminal voltage of the battery should be measured every time during the discharge, and the ratio of the terminal voltage drop with time is drawn accordingly. The battery with a slow voltage drop is preferred. 4. Observe the drop of open circuit voltage of the battery. If the situation permits, you can observe the change of the battery terminal voltage during the lead-acid battery standing. The faster the drop, the worse the purity of the internal material, the faster the battery self-discharge, and the relative The worse the life span. 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: Analysis of polymer lithium battery