Possible reasons and solutions for 18650 lithium battery not charging

There are many situations where the 18650 battery cannot be charged. Different problems require corresponding repair methods to solve the problem of the 18650 battery not being able to charge. So what are the reasons and solutions for the battery not charging?

The possible reasons why the 18650 lithium battery cannot be charged are as follows:

Poor battery connection: If the battery and charger are in poor contact, the battery cannot be charged. At this time, you need to check whether the contact between the battery and the charger plug is good, or try replacing the charger and battery.

Incorrect battery polarity: If the battery is inserted into the charger backwards, it will also cause the battery to not charge. The correct operation is to connect the positive pole of the battery to the positive pole of the charger, and the negative pole of the battery to the negative pole of the charger.

Faulty charger: If the charger itself fails, it can also prevent the battery from charging. At this time, the charger needs to be replaced to solve the problem.

Battery aging: If the battery has been used for a long time, the battery capacity may have decreased, and the internal resistance of the battery may have increased, which will cause the battery to not be fully charged. At this time, a new battery needs to be replaced.

Insufficient charging voltage: If the output voltage of the charger is insufficient, the battery will not be fully charged. At this time, it is necessary to check whether the output voltage of the charger meets the requirements of the battery.

In short, if the 18650 lithium battery cannot be charged, it is necessary to check the battery connection, polarity, charger, battery aging and other factors to find the problem and repair or replace the device.

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