Although the periodic maintenance of UPS power supply is less, but these contents are very necessary，And these maintenances must have a set of strict procedures. For example, maintenance personnel do not regularly maintain equipment as required, which is one of the important reasons for the failure of UPS power supply.

1.  The use of UPS power supply should be in a well-ventilated, heat-dissipating and clean, tidy and dust-free environment。

2.  During the use of the UPS power supply, do not bring inductive loads to avoid damage.

3.  The output load of the UPS power supply should be controlled within a certain range, 50%-80% is better, neither too high nor too low, thus affecting the service life of the UPS power supply。

4.  Proper discharge is helpful for the activation of the battery. For example, if the mains power is not interrupted for a long time, the mains power should be manually cut off and the UPS power supply should be discharged once every three months with the load, which can prolong the service life of the battery.

5.  When using, you should pay attention to the sequence of switching on and off. When starting up, the UPS power should be turned on first, and then the loads should be turned on one by one, so as to avoid the impact of the load current on the UPS power supply and prolong the service life of the UPS. When shutting down, the loads should be turned off one by one, and then the UPS power should be turned off.

6.  After the UPS is discharged, it should be charged in time to avoid damage to the battery due to excessive self-discharge.

Due to the battery, the reliability of the UPS alone cannot ensure safe power supply services in emergency situations, and is misled by the manufacturer's "maintenance-free", resulting in 90% of the batteries lacking maintenance，the battery usually changes from good to bad within a week or two, and in extreme cases, it deteriorates in just 2 days. Therefore, for the core backup power system, only quarterly maintenance is far from enough.

The scientific and effective battery maintenance method at this stage is to install a battery online monitoring system for the battery pack，Real-time online monitoring of important parameters such as voltage, internal resistance, temperature, and battery leakage of single cells，Once a parameter is found to be abnormal, an alarm will be issued immediately, which can prompt the maintainer to find problems or potential hidden dangers and deal with them in time. Thereby, the failure rate of the UPS is greatly reduced, a lot of human and financial resources are saved, and the safe operation of the UPS power system is ensured.