How does 18650 lithium battery charge not enter charge? What's the solution?
Back
2023/05/27 11:31:33
The Type 18650 lithium battery is the most commonly used lithium battery in electronic products. It is often used as the battery cell in laptop computers. When we use it, we find that sometimes the 18650 lithium battery cannot be charged. Let's analyze the reasons below.
1. The electrode contact of the battery is dirty, and the contact resistance is too large, resulting in too large voltage drop. When charging, the host machine thinks that it is full and stops charging;
2. The internal charging circuit fails and cannot be charged normally;
3.18650 Lithium Battery Internal Faults Occur.
18650 battery charge not into the solution
1. The charger interface is aging or the charger itself is damaged. Replace it with a new charger for test.
2. The metal of the charging hole is oxidized to cause poor contact, which is a hardware fault. It needs to contact the after-sales service for detailed detection and maintenance.
3, the quality of the charging line is wrong, replace the new line.
4, the life of the battery itself has been exhausted or damaged, directly replace the battery.
18650 Lithium battery repair principle
Repair principle one: the metal surface of the lithium battery used for a long time will have a certain degree of oxidation, resulting in bad contact between the mobile phone battery and the mobile phone, lithium battery use time becomes short, and use the eraser or other cleaning tools to erase the surface of the rusty material, so that the battery and the phone contact becomes good.
Repair principle two: Low temperature can make the electrolyte inside the lithium battery change, promote the chemical reaction of the battery just after freezing. The use of lithium batteries is a process of charging and discharging. During this time, the negative and positive charges in the cell collide with each other. The reason why batteries become more and more unused is that at normal room temperature, the internal kinetic energy of the electrons is relatively large, so the battery is active and leakage is relatively frequent. 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 interface will change significantly, resulting in temporary inactivity inside the battery and reduced leakage current. So after recharging the phone, the battery life will increase.
The life cycle of lithium battery is about 600 times. If the number of charging times is too much, the thermal motion of molecules will gradually destroy the internal molecular arrangement microstructure, and the efficiency of charge storage will gradually decrease. "The freezing process tends to damage the original internal structure of the battery, which may increase the ability to charge for a short period of time, but may not be effective for long-term use." Once the microscopic structure in lithium battery is damaged, it is impossible to recover completely. Long-term use of this method will accelerate the loss of mobile phone battery.
Fix 3: Deep discharges, which deplete your phone's internal power to recharge it further, require some unconventional methods. Find a way to connect the phone to a small 1.5V light bulb, and the battery's internal charge will be transferred to the bulb until it's all out. "The phone needs to slowly use up power through lower voltages. Normally, when the phone is connected, if it is below the rated voltage of 3.6 volts, it will automatically shut down. The phone's battery lasts longer when it is recharged after it has been drained.
18650 lithium battery repair method
1, take down your battery after all used up, with temperature treatment, the battery in the case of unstable temperature will greatly shorten the use of time, because the battery is no electricity and a considerable part of the lithium ion has memory electricity with this method can make memory electricity release part, winter is coming, put outside for a while, and then to the house.
2, there is another way, take off the battery, put it for about a week, the electricity will be slowly consumed, need to use the machine will be completely consumed. And then full charge, estimate your charging time must be very short, after full, disconnect again, repeated several times, absolutely effective.
Previous
