The usual use should pay attention to the following points:
When using UPS power supply, the relevant provisions of the manufacturer's product manual should be strictly observed to ensure that the live line and neutral line of the UPS connected to the mains meet the requirements.
The main purpose of the UPS is to prevent the computer from losing information and destroying the hard disk due to sudden power outages, but some devices are not afraid of sudden power outages (such as printers). In order to save the energy of the UPS, the printer can consider directly accessing the mains without having to go through the UPS. In the case of a network system, consider that the UPS only supplies power to the host (or server) and its related parts. This ensures that the UPS can use both the most important equipment and save investment.
Do not overload the UPS. The maximum load of the UPS power supply should be 80% of its nominal load. If overloaded, in the inverter state, the breakdown of the inverter transistor is often caused. In addition, when using the UPS, it is strictly forbidden to connect an inductive load such as a fluorescent lamp, but only a pure electric or a small capacitive load.
When switching on and off, you should pay attention to the order of switching machines: first turn on the UPS when starting up, later (preferably lag 1-2 minutes, let the UPS fully enter the working state) and then turn on the load power switch, and the power switch of the load must be one by one. Ground to open: the order is the opposite when shutting down, first turn off the load power switch one by one, then turn off the UPS. The UPS should be turned on for a long time, and the load such as the computer should be turned on every time. After use, just turn off the power switch of the computer and other loads.
Do not turn the UPS off and on frequently. Generally, after turning off the UPS, wait at least 6 seconds before turning on the UPS. Otherwise, the uninterruptible power supply may be in a "startup failure" state, that is, the UPS power supply has neither commercial output nor reverse. The abnormal state of the transformer output.
The power in the battery in an UPS may be exhausted or nearly exhausted for some reason. In order to compensate for battery energy and improve battery life, the UPS should perform a timely, long-term continuous charging (usually no less than 48 hours, with or without load) to avoid failure due to battery failure. UPS newly purchased or stored for a long time should be charged for 12 hours before use. Long-term storage of unused UPS, charging for 12 hours every 3 months, if in high temperature, charging once every 2 months. The UPS will be used without charging and will damage the battery.