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How to fix lithium-ion batteries

Nowadays, the application of lithium-ion batteries is very extensive. How to save costs and prolong the life of dead lithium-ion batteries? Let me share relevant experience with you

The false death of lithium-ion batteries is generally divided into three categories

Firstly, the battery base cannot charge, the charger and appliances cannot recognize it, and the electrodes have no voltage.

The second one can be charged, charged, and recognized by electrical appliances, but it can only last for a few minutes and quickly deplete the battery.

Thirdly, it can be charged and has sufficient capacity, but the voltage drops significantly during high current discharge (for example, shooting with a camera can only last for a few minutes, but looking back can last for a long time).

The battery looks dead, but it is very likely to be saved. My solution is to charge the battery with direct current equal to the planned voltage of the battery.

2. This type of dead battery is not filled with electrical energy like the original charger (the base is not current), but when the planned battery voltage is equal to the battery's direct current (DC), a larger current will be found, and the charging current will gradually decrease, approaching zero after a few minutes. This is good news: the battery voltage has returned to the planned level.

Stop charging at this point and use a multimeter to measure the north-south direction of the battery to see if there is normal voltage

3. Then, you can use the original charger to charge.

Through this method, I have corrected a considerable number of batteries, many of which have been restored to around half of their planned capacity.

To fully activate the battery, it needs to be fully charged and discharged several times. The discharge circuit consists of resistors and light-emitting diodes, and the discharge state can be estimated through the light-emitting diodes.

Based on my relevant experience, this method is very useful for the first type of battery. The batteries in the latter two situations are difficult to correct, and the materials found online rarely have significant effects. Especially for the third type of battery, which has sufficient capacity but a significant drop in high current discharge voltage (specific performance such as camera shooting can only last for a few minutes, but retrospective mode can last for a long time), throwing away such batteries is truly regrettable.

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