1. The charger interface is old or the charger itself is damaged. Replace it with a new charger to test it.
2. The metal of the charging hole is oxidized and causes poor contact. This is a hardware failure that requires contacting customer service for detailed inspection and repair.
3. There is a problem with the quality of the charging cable. Replace it with a new one.
4. The battery itself is exhausted or damaged. Just replace it.
5. Remove the battery after it is completely exhausted and treat it with temperature. If the battery temperature is unstable, the use time will be greatly shortened because the battery has no energy and a considerable part of the battery. The lithium ions are already charged. If you have memory electricity, you can use this method to free up some of the electricity.memory electricity. When winter comes, put it outside for a while, then bring it inside.
6. There is another way to remove the battery and leave it for about a week to slowly consume the power. You must first use a machine to completely consume the energy. Then rinse again. Once it is full, disconnect and rinse again several times.
18650 lithium battery repair principle:
Principle 1: The metal surface of lithium batteries used for a long time will be oxidized to a certain extent, resulting in poor contact between the cell phone. battery and cell phone. Lithium batteries The usage time becomes shorter, and using an eraser or other cleaning tools can remove the rusty material on the surface, so that the contact between the battery and the phone becomes better.
Principle ofrepair 2: Low temperature can change the electrolyte inside the lithium battery and promote chemical reactions in the newly frozen battery. The process of using a lithium battery is actually a process of charging and discharging.
During this period, the negative and positive charges of the battery collide. The reason why batteries become less and less durable is that at normal room temperature, the internal kinetic energy of electrons is relatively large, so the battery is in an active state and leakage is relatively frequent.
When lithium batteries are 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 undergo significant changes , causing temporary problems. inactivity inside the battery and reductionction of the leakage current. Therefore, after recharging, the battery life of the mobile phone will increase.
Third principle of repair: Deep discharge of the mobile phone involves obtaining a deeper recharge by depleting the internal power, which requires unconventional methods.
Find a way to connect the cell phone to a small 1.5V light bulb. The energy in the lithium battery will be transferred to the small bulb until all the light is emitted . "Cell phones must slowly drain due to lower voltages. Under normal circumstances, if the cell phone is connected and is lower than the rated voltage of 3.6 volts, it will automatically turn off after discharge, the battery of the mobile phone recharged." can be used longer.
If the light turns green as soon as it is charged and cannot be charged,this means there is a problem with the batteryBattery capacity<. strong>is seriously lost and needs to be checked and replaced. The second reason is the charging failure caused by the charger problem, and the charger needs to be replaced.
Charging the lithium batteryPrecautions
Do not overcharge or discharge. Since lithium batteries are non-memory batteries, it is recommended to charge or recharge the battery regularly after each or every day of driving, which will significantly extend the life of the battery. Over-discharge or self-discharge reaction at low voltage will cause the decomposition and destruction of lithium-ion active materials, and any form of overcharging of lithium-ion batteries will cause serious damage to battery performance or even explosion.
Recharge on time. After being discharged, lithium batteries will entert in the sulfidation process if charged in time, less serious sulfidation can be eliminated.