Three methods for repairing lithium batteries
When the mobile phone lithium battery begins to age, it generally shows that the display voltage is basically normal when the mobile phone is empty, the battery power indicator is basically full, but the standby time is short, and the call is automatically turned off when the phone is charged, and the display is fully charged when charging. This type of battery can be repaired in the following ways.
Lithium battery repair method one: discharge
You can take the method of starting discharge or connecting resistors. The start-up discharge should be placed to the extent that the phone is turned on and off; the resistor discharge can be taken by a small bead connected to the corresponding voltage for a long time until the small bead is connected to the instant. The discharge current is preferably a large current.
Lithium battery repair method 2: activation
Connect 12V AC in series, and connect a small electric bead or resistor between the batteries for current limiting. First, use a small current to activate, so that the control loop AC is tens of milliamperes, maintain 30 to 60 minutes, and then increase the current to 1 to 2 times the nominal value of the battery. For example, a 1000 mAh battery is added to 1000-2000 mA and activated for 30-60 minutes. In the above process, attention should be paid to observing the temperature and appearance of the battery: there should be no abnormal phenomena such as hot, smoke, bulging, etc. If the temperature is too high (above 40 °C), the current should be appropriately reduced. Lithium batteries that have undergone the above activation process can generally be used normally, but cannot be compared with new batteries!
Lithium battery repair method three: freezing (user experience)
A few days ago, I couldn't use a lithium battery. The symptoms were that I couldn't charge it, and I couldn't turn it on in the camera (the camera showed no power). I tried it several times. There is no way to abandon one side, and it is thrown into the trash. Later, I didn't know what it was. I sealed the battery with multi-layer absorbent paper and multi-layer plastic film and put it into the freezer of the refrigerator (minus 18 degrees) for two days and two nights. After taking it out, I put it in the room and kept it indoors for two days. I am not willing to try again in the camera, hey, it is completely back to normal! Anyone who is telling you, if there are similar situations, you may wish to try!