The lithium battery cannot be charged if it is not used for a long time

When the lithium battery is not used for a long time, it can be activated by charging it several times with a small current or replacing the battery with a new one.

1. Lithium batteries have bad characteristics: self-discharge is related to voltage (the amount of electricity charged is the saturated state of charge), so lithium batteries stored for a long time should do this. be charged A certain amount of energy cannot be charged if it is not used for a long time because the battery itself is not good and the internal resistance is too large

resulting in self-consumption.

2. If the battery is not used for a long time (several months), it should be removed from the machine and saved for later use. It is recommended to discharge and charge the battery approximately every month and a half to improve the condition of your bbattery and increase its capacity.

3. If the battery is not used for a long time, its power should be adjusted to 30~50% before storage. It is recommended to charge the battery about once a year and set its power to 30. ~ 50% to avoid excessive use. Discharge and damage the battery. The specific operation method for adjusting the battery power to 30~50% is as follows: when the battery power is greater than 50%, the power consumption can be turned on to 30~50%. If the battery is less than 30%, turn it on first to drain the battery to 3%, then charge it to 100%, then turn it on to drain the battery to 30~50 %.

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Let's talk about the reason first, because if the lithium battery is not used for a long time, the activity of the battery will be lost, so it may not be able to charge normally.

Put the battery ina plastic bag, put it in the freezer of the refrigerator for a few days, then leave it at room temperature for a few days. This may reactivate battery activity.

You can also try reactivating the charger by unplugging and plugging it in several times. The time of each unplugging and plugging is maintained for 10 seconds. It can be reactivated after a certain number of repetitions.

If none of the above methods work, it means the lithium battery is completely damaged inside, so just replace it with a new one.