Possible causes: The mains input air switch trips; Poor contact of input AC line; The mains input voltage is too high, too low or the frequency is abnormal; UPS input air switch or switch is damaged or fuse is blown; UPS internal mains power detection circuit failure. processing method Chec

1. Improper maintenance of valve regulated lead acid (VRLA) battery Many people think that this kind of battery does not need maintenance. After installing the battery, they have never maintained it, and there is no regular dedusting maintenance. If the dust accumulation is too thick, the heat diss

Analysis: the main reason for water loss of lead-acid battery The electrolyte in the lead acid battery is as valuable as the blood in the human body. Once the electrolyte disappears, it means the battery is scrapped. The electrolyte consists of dilute sulfuric acid and water. During the charging pr

Security LFP battery has safer cathode material than NMC battery, and will not degrade at higher temperature. In fact, LFP battery provides the best thermal stability and chemical stability, so it has higher safety than NMC battery. The LFP battery will only enter the thermal runaway state at 195 ℃

1. Confirm whether the cable layout considers other system wiring in the future and meets the construction requirements. The cable layout is reasonable and meets the construction requirements. 2. Confirm whether the input cable, output cable and battery cable are connected correctly, fastened and d