How to repair the lithium battery can not be charged?

1. The common reasons why lithium batteries do not charge into the electricity

1) Charger failure: the charger may be damaged due to long-term use or other reasons, resulting in the inability to properly charge the battery.

2) Battery aging: with the growth of the use of time, lithium batteries will gradually aging, performance degradation, charging speed slows down or can not be charged.

3) Battery protection board failure: the protection board inside the battery prevents overcharging or overdischarging, if the protection board fails, the battery may not be able to charge normally.

4) Poor contact: If the contact point between the battery and the charger is dirty or oxidized, it may lead to poor contact and affect the charging effect.

5) Batteries that have been dropped or have been in water: this situation may result in poor contact or damage to the battery, resulting in failure to charge.

2. Repair Methods

1) Replace the charger: If the charger is confirmed to be faulty, the most direct solution is to replace it with a new one, choosing a reliable brand and quality-assured charger.

2) Activate the battery: For aging lithium batteries, you can try to restore part of the performance through activation. The specific method is to fully discharge the battery to 0% after it is fully charged, and then fully charged again, cycle 3-5 times.

3) Replace the protection board: If it is confirmed that the battery protection board is faulty, you need to send the battery to a professional repair store for replacement.

4) Clean contact points: For poor contact problems, you can use a cotton swab dipped in a small amount of alcohol to clean the contact points of the battery and charger. After cleaning, try charging again.

5) Replace the battery: If none of the above methods can solve the problem, the battery itself may be faulty and needs to be replaced with a new one.

3. Precautions

1) Safety first: When trying to repair lithium batteries, be sure to pay attention to safety. Avoid using broken batteries or chargers, do not charge in a humid or high temperature environment.

2) Professional repair: If none of the above methods can solve the problem, it is recommended to send the battery to a professional repair store for inspection and repair. Do not disassemble the battery or try unfamiliar repair methods by yourself to avoid danger.

3) Regular maintenance: In order to prolong the service life of lithium battery and keep its good performance, it is recommended to maintain the battery regularly. For example, avoid overcharging and discharging, and keep the battery contact points clean.