2. The metal of the charging hole is oxidized, resulting in poor contact, which is a hardware failure, and it is necessary to contact the after-sales department for detailed inspection and maintenance.
3. There is something wrong with the quality of the charging cable. Replace it with a new one.
4. If the life of the battery itself is exhausted or damaged, just replace the battery directly.
5. After the batteries are used up, remove all the batteries and conduct temperature treatment. When the temperature is unstable, the service life of the battery will be greatly shortened, because the battery is dead, and a considerable number of lithium ions have memory power. This can release part of the memory electricity. When winter comes, leave it outside for a while and then take it indoors.
6. There is another way. Take off the battery, leave it for about a week, and slowly consume electricity. You need to use the machine to completely consume the electricity first. Then flush it all, fill it up, disconnect it and flush it again, and repeat it several times.
Extended data:
Maintenance principle of 18650 lithium battery;
Principle 1: The metal surface of lithium battery used for a long time will be oxidized to a certain extent, which will lead to poor contact between mobile phone battery and mobile phone, and the service time of lithium battery will be shortened. However, you can use an eraser or other cleaning tools to wipe off the rusty substances on the surface, so that the battery can contact the mobile phone better.
Repair principle 2: 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 process of charging and discharging.
During this period, the negative charge and positive charge in the battery collide with each other. The reason why the battery will become more and more useless is that at normal room temperature, the kinetic energy inside the electrons is relatively large, so the battery is in an active state and leaks frequently.
When the lithium battery is placed in a low temperature environment, the microstructure of the lithium film and electrolyte on the surface of the lithium battery, as well as their interfaces, will change obviously, resulting in temporary inactivity inside the battery and reduced leakage current. Therefore, after recharging, the waiting time of the mobile phone will increase.
Repair principle 3: Deep discharge of mobile phone is to realize deeper charging by exhausting internal power, which requires some unconventional methods.
Try to connect the mobile phone with a small light bulb of 1.5V, and the electricity in the lithium battery will be conducted to the small light bulb until it is completely discharged. "The mobile phone needs to slowly run out of power through a lower voltage. Under normal circumstances, if the phone is connected below the rated voltage of 3.6 volts, it will automatically shut down. " After discharging, the rechargeable mobile phone battery can be used for a longer time.