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1. Regular inspection

During the use of lithium-ion battery UPS, it is necessary to regularly inspect the battery. Check the terminal voltage and internal resistance of the battery pack. Charge the batteries of each unit evenly to restore the internal resistance of the battery and eliminate the terminal voltage imbalance between the units.

2. Correct charging and discharging

It is best to consciously unplug the mains power input every few months and let the lithium-ion battery UPS power supply work in a state where the lithium-ion battery supplies energy to the inverter. However, this operation should not take too long. When the load is about 30% of the rated output, discharge for about ten minutes.

Reducing deep discharge is closely related to the battery's lifespan and the depth at which it is discharged. The lighter the load carried by the lithium-ion battery UPS power supply, the greater the ratio of its available capacity to its rated capacity when the mains power supply is interrupted. In this case, when the UPS power supply automatically shuts down due to low battery voltage, the depth of battery discharge is deeper.

3 Charger selection

When charging the lithium-ion battery UPS power supply, it is best to use the manufacturer's original charger for charging. Because the charging method of the original charger is the most suitable for UPS itself, and the originally configured charger also has a protective design, but other chargers may not be the same.

Therefore, for the safety and service life of UPS and lithium-ion batteries, it is best to use the originally configured charger. If there is a problem with the charger, it is best to purchase a charger of the same model from the manufacturer.

Before the lithium-ion battery UPS power supply is restarted after a long period of inactivity, it should be started without load, and the lithium-ion battery should be recharged with the charging circuit inside the UPS for several hours before running with load.

If the lithium-ion battery UPS is in a floating charge state for a long time without discharging, it is equivalent to being in a storage and replacement state. If this state persists for a long time without charging and discharging it, it is likely to cause lithium-ion batteries to fail and be scrapped due to prolonged storage.

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