Mobile phone battery repair method
1. Use a clean eraser or other cleaning tool to gently wipe the metal contacts on the lithium battery and the metal contacts on the phone to help with charging and power lasting.
The principle of lithium battery repair method one: the metal surface of the lithium battery used for a long time will have a certain degree of oxidation, resulting in poor contact between the mobile phone battery and the mobile phone, the lithium battery use time is shortened, and the rubber raft or other cleaning tools can be used. Wipe off the rust on the surface and make the battery contact with the phone.
2. The old mobile phone lithium battery that uses the automatic shutdown will be wrapped tightly with plastic wrap. When wrapping, try to serve as much as possible. There are three layers inside and outside to ensure that the battery is under vacuum. Then, the three-layer newspaper on the outside of the plastic wrap is used to completely seal the lithium battery. After being placed in the freezer layer of the refrigerator, after 48 hours, the battery was taken out, and the six-layer paper film wrapped outside was removed one by one. The lithium battery was not swollen or deformed due to freezing. After cooling for a while, then charge.
The low temperature can change the electrolyte inside the lithium battery and promote the chemical reaction of the battery that has just been frozen. The use of lithium batteries is actually a charging and discharging process. During this period, the negative and positive charges in the battery collide with each other. The reason why the battery is becoming more and more useless is because at normal room temperature, the internal kinetic energy of the electron is relatively large, so the battery is in an active state, and the leakage is relatively frequent. When the lithium battery is placed in a low temperature environment, the lithium film on the surface of the lithium battery and the microstructure of the electrolyte, and their interface will change significantly, resulting in a temporary inactivity of the battery and a decrease in leakage current. Therefore, after recharging, the waiting time of the mobile phone will increase.
3. Discharge the lithium battery that is nearly scrapped and recharge it to activate the battery. The specific method is: deep discharge of the mobile phone, by exhausting internal electrical energy, to achieve a deeper degree of recharging, which requires some unconventional methods. Connect the phone to a low-voltage small light bulb with a specific device, and the internal power of the battery will be transferred to the small light bulb until it is fully illuminated. “The mobile phone needs to slowly run out of power through a lower voltage. Under normal circumstances, if the mobile phone is connected below the rated voltage of 3.6 volts, it will automatically shut down.” After the battery is discharged, the rechargeable battery can be used again. Long time.
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