Tips for the First Charging of UPS Power Supply
After purchasing a new UPS power supply, it should be plugged into the 220V mains power grid and charged for at least 12 hours to ensure that the battery is fully charged. Otherwise, the actual usable capacity of the battery will be significantly lower than its nominal capacity. If the UPS power supply is not used for a long time. It should be turned on for 24 hours every 2-3 months, fully charged, and the UPS power supply should be in the inverter working state for 2-3 minutes to ensure the normal life of the battery. Once the UPS power supply is connected to the mains, it starts charging the battery pack. Press the power button continuously for more than 1 second to turn on the inverter.
Reasonably choose the installation location of UPS power supply
A good installation location is very important. The place where UPS is placed must have good ventilation, be away from water, flammable gases, and corrosive agents, and maintain an ambient temperature between 0-40 ℃. If disassembled and used at low temperatures, there may be condensation of water droplets. Once the ambient temperature exceeds 25 degrees, for every 10 degrees increase, the battery life will be reduced by half. At present, the batteries used in UPS power supplies are generally maintenance free sealed lead-acid batteries, with a design lifespan of generally 5 years.
UPS power supply should not be placed on the side, and the inlet and outlet holes should be kept unobstructed; When connecting the load to the UPS power supply, it is necessary to first turn off the load, then connect the wires, and then turn on the load one by one. It is strictly prohibited to connect inductive loads such as electric and copier to the UPS power supply to avoid injury. When connecting the UPS power supply to a dedicated socket with overcurrent protection device, the power socket used should be connected to the protective ground terminal; Regardless of whether the input power cord is plugged into a mains outlet, the UPS power output may still be live. To make the UPS power supply have no output, you must first turn off the switch and then cancel the mains power supply.
The startup and shutdown sequence when using UPS power supply
The correct startup and shutdown sequence should be to first turn on the UPS power supply to power it, and then turn on each load. This can avoid the damage caused by the instantaneous current surge during startup to the UPS. When shutting down, the sequence is exactly the opposite: first turn off each load, and then turn off the UPS. When the mains power is interrupted and powered by UPS, one should save their data and information as soon as possible and then turn off the computer. Otherwise, using UPS power for work may cause excessive discharge of the UPS, thereby shortening its service life.
UPS power supply cannot be left idle for a long time
Excessive discharge and long-term idle use of batteries can increase their internal resistance and deteriorate their charging and discharging performance. For UPS power supplies that have been idle for a long time, before restarting, let the UPS power supply use the internal charging circuit to charge for 12 hours before connecting the load. For backup UPS power supplies, it is best to let the UPS power supply work in inverter mode for 2-3 minutes every month to activate the battery. In addition, it is necessary to strictly control the charging current of the battery to not exceed the maximum charging current allowed by the battery. Because excessive charging current can shorten the service life of the battery.