UPS ( Uninterruptible Power Supply ) is able to continue to supply power to computers and other equipment after power failure, because it has a device for storing electrical energy. This energy storage device is a UPS battery.
Its main functions are: 1. When the utility power is normal, the electrical energy is converted into chemical energy and stored inside the battery.
2. When the mains fails, the chemical energy is converted into electric energy and supplied to the inverter or the load.
The quality of the UPS battery is directly related to the reliability of the entire UPS system, but the battery is the shortest device with the lowest MTBF in the entire UPS system . If the user can use and maintain it correctly, it can prolong its service life, otherwise its service life will be significantly shortened. The types of batteries are generally divided into lead-acid batteries, lead-acid maintenance-free batteries and nickel-cadmium batteries, as shown in the following table.
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Considering the load conditions, the use environment, the service life and cost, etc., lead-acid maintenance-free batteries are generally selected. Users should never use inferior batteries because they are cheap, because doing so will affect the reliability of the entire system and may cause even greater losses.
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