How to repair the phone battery?

1. Use a clean eraser or cleaning tools of other materials to gently wipe the metal contacts on the lithium battery and the metal contacts on the mobile phone, which will help the charging status and the lasting power. The principle of lithium battery repair method one: the metal surface of the lithium battery used for a long time will be oxidized to a certain extent, resulting in poor contact between the mobile phone battery and the mobile phone, and the use time of the lithium battery is shortened. Remove the rusty material on the surface and make the battery contact with the phone better. 2. Wrap the old mobile phone lithium battery that is used to automatically shut down with plastic wrap, and try to be as compliant as possible when wrapping it. There are three layers inside and outside to ensure that the battery is in a vacuum state. Then, wrap three layers of newspaper outside the plastic wrap to completely seal the lithium battery. Put it in the freezer layer of the refrigerator, after 48 hours, take out the batteries, and remove the six layers of paper film one by one. The lithium battery has no surface expansion or deformation due to freezing. After cooling for a period of time, 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 process of a lithium battery is actually a charge and discharge process. During this period, the negative and positive charges in the battery collide with each other. The reason why the battery is becoming less and less useful is because the kinetic energy inside the electron is relatively large at normal room temperature, so the battery is in an active state and leakage is relatively frequent. When a lithium battery is placed in a low-temperature environment, the microstructure of the lithium film on the surface of the lithium battery and the electrolyte, as well as their interface, will change significantly, resulting in temporary inactivity inside the battery and reduced leakage current. So after recharging, the standby time of the phone will increase. 3. Let the lithium battery that is close to being scrapped completely discharge, and then recharge the battery to activate it. The specific method is: deep discharge of the mobile phone is to achieve a deeper recharge by depleting the internal electric energy, which requires some unconventional methods. Use a specific device to connect the mobile phone to a small low-voltage light bulb, and the power inside the battery will be transferred to the small light bulb until all is discharged. The mobile phone slowly runs out of power through a lower voltage. Under normal circumstances, if the mobile phone is connected to the rated voltage of less than 3.6 volts, it will automatically shut down. After the battery is discharged, the recharged mobile phone battery can be used for a longer time. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What factors restrict the development of lithium batteries?