The main reasons for the lithium battery to fail to charge are as follows:
1.Battery failure: The physical damage, chemical aging, over-discharge and other reasons of the lithium battery lead to the decline of the battery function, resulting in the battery cannot be charged. Physical damage can be caused by external factors such as impact, crushing, high temperature, etc., while chemical aging is caused by chemical reactions in lithium batteries during long-term use.
2.Charger failure: A malfunction or damage to the charger may cause the battery to fail to charge. The charger may fail due to overheating, short circuit, aging, etc., and the charger needs to be replaced.
3.Charging line failure: Poor contact, breakage, overload and other conditions of the charging line may also cause the battery to fail to charge. At this point, the charging line needs to be checked and repaired.
4.Battery management system problems: Problems with the battery management system, such as abnormal function of the battery protection board, cell voltage exceeding the overvoltage protection value, etc., may also cause the battery to fail to charge.
For these reasons, the following fixes can be taken:
1.Battery failure repair: If the physical damage to the battery is mild, you can try to repair it, such as using a lithium battery repair tool for physical repair or chemical repair. Lithium battery repair can effectively improve battery performance, extend service life, and reduce the environmental impact of waste batteries. If the battery is more damaged, it may need to be replaced.
2.Charger fault repair: If there is a problem with the charger, you can try to replace the charger and choose a regular lithium battery repair institution or professional to repair it to ensure the quality and performance of the charger.
3.Charging line fault repair: check the charging line and repair it, you can use the detection tool to measure the no-load output voltage, check the poor contact of the charging line, etc., to ensure the normal operation of the charging line.
4.Battery management system problem fix: For battery management system problems, you can use diagnostic tools to detect the working status of the battery management system, check the function of the lithium battery protection board, etc., and the effect after repair can reach more than 90% of the normal battery.
During the repair process, you need to pay attention to the following:
1.Before repairing the battery, you need to drain the battery first to avoid danger during the repair process.
2.When using repair tools, it is necessary to strictly follow the operating procedures to avoid battery damage or personal injury caused by improper operation.
3.During the repair process, it is necessary to pay attention to environmental safety to avoid dangerous situations such as battery spontaneous combustion.
4.After the repair is complete, it needs to be inspected and tested to ensure that the battery performance is back to normal. If the battery still won't charge, you may need to replace the battery or battery management system.
In conclusion, there are many reasons why lithium batteries cannot be charged, it may be battery failure, charger failure, charging line failure, or battery management system problems, etc. There are different remedial measures that can be taken for these causes. During the remediation process, it is necessary to pay attention to environmental safety and operating procedures to ensure the effectiveness and safety of the remediation.