Common problems and solutions of lithium ion battery pack are as follows:

Unable to discharge

When the lithium-ion battery pack was just assembled and ready for practical use, it was found that it could not be discharged, which was very annoying. After all, the joy of just assembling was poured cold water by the discharge problem before it dissipated.

For the reasons why the lithium ion battery pack cannot be discharged, the following points can be used for reference. The low voltage of the lithium ion battery pack triggered the protection function of the protection board or controller; The same result will occur if the protection board or controller is damaged; The positive and negative electrodes of the discharge are reversed.

In addition to the problems that really occur inside the lithium-ion battery pack, the careless behavior of checking whether the line is disconnected and whether the switch is open will also cause the lithium-ion battery pack to fail to discharge.

Charging fault

Charging failure includes failure to charge and failure to fully charge. The lithium ion battery pack cannot be charged when charging. The possible reasons are that the charger is connected reversely or the charger fails; The protection of the protection board is not recovered or the protection board fails; The external circuit between the battery pack and the consumer is open.

During the recycling process of the lithium-ion battery pack, the charging stops before the overall cut-off voltage of the battery pack is reached. The reason why the battery cannot be fully charged is that the single string of battery pack has inconsistent power or capacity, and the first full charge of the battery pack with high power or low capacity is protected by the protection board, which stops the charging process when the battery of other strings is not fully charged.

Short service time

When the lithium-ion battery pack is actually used after being fully charged, it is found that the battery pack is discharged soon. The main reason for this is that the lithium ion battery is not fully charged; Large difference of single string voltage capacity; The battery pack is short circuited or self discharging of the battery pack is large, which causes the battery pack to be consumed as soon as it is fully charged.

Abnormal temperature

When the lithium-ion battery pack is charged or discharged, the temperature is abnormal and becomes extremely hot. If this happens for a long time, the safety, stability and service life of the lithium-ion battery pack will be greatly affected.

Shenzhen Topband Battery Co., Ltd.，established in 2006, is a wholly-owned subsidiary of Shenzhen Topband Co., Ltd. (002139.SZ). We focus on lithium iron phosphate batteries,with independent research and development in cells and BMS. With the ability to integrate the entire industry chain, we are committed to providing customers with one-stop lithium battery solutions and services. Our quality products are widely used in energy storage and light power.