How to judge the quality of UPS lithium battery?

　　1. Easy to distinguish from the surface. It is like the four diagnostic methods used in traditional Chinese medicine. During the inspection, the consistency of the surface should be checked first. For example, the appearance of the lithium battery UPS is deformed or bulged. If such a situation occurs, it indicates that the internal organic chemical structure of the lithium battery has already been damaged, which belongs to the team that must be selected first.

　　2. In addition to observing the deformation, it is also necessary to check whether there is liquid leakage, cracking, bursting, burning or internal liquid exposed at the connection of screws. Generally, these rechargeable batteries are all rechargeable batteries with major product quality problems. Not only is the lithium battery UPS of this batch with defects in appearance cannot be selected, but also rechargeable batteries from the same manufacturer are not recommended to be selected, Prevent production safety accidents and various common failures in the whole process of application.

　　3. The load must be accurately measured internally. When it is clear that there is no abnormal phenomenon in the appearance, the next process is to make the lithium battery UPS bear a certain amount of load when it is in the working mode. If the charging and discharging time of the lithium battery UPS cannot meet all the normal charging and discharging time or the battery charging and discharging time is sufficient and still cannot respond to all the normal standard reserved time, it indicates that the charging battery has already become brittle, We can no longer consider the daily use of lithium batteries.

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