18650 lithium battery repair method
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2023/09/26 09:38:41
The general configuration of the 18650 lithium battery is as follows:
The nominal voltage of a single section is generally 3.6V or 3.7V
Charging voltage is generally 4.20V (lithium cobaltate is 4.2V-4.3V)
* Small discharge termination voltage is generally: 2.75V, lower than this voltage can easily lead to a serious reduction in battery capacity and even scrap
* Charge termination voltage: 4.20V
Diameter: 18±0.2mm
Height: 65±2.0mm
Capacity: more than 1000mAh, some brands will mark 3600mAh or 4500mAh and other amazing capacity, the current 18650 battery capacity is the best Sanyo, can do 3100mAh, but the price is not low.
18650 Lithium Battery Parameter _18650 Lithium battery repair method
18650 lithium battery repair method
1, lithium battery repair method one
Use a rubber sassafras or other cleaning tools to wipe the surface of the rusty material.
Lithium battery repair method one principle:
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, and the use of the lithium battery will be shorter, and the rusty substance on the surface can be erased with erasers or other cleaning tools, so that the battery and the mobile phone contact will be better.
2, lithium battery repair method two
Take down your battery after all use up, with temperature treatment, the battery in the case of temperature instability 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 the memory electricity release part of the winter, put it outside for a while, and then get to the house.
The principle of lithium battery repair method two:
Low temperature can make the electrolyte inside the lithium battery change, and promote the chemical reaction of the battery that has just been frozen. The use of lithium batteries is actually a charge and discharge process. During this time, the negative and positive charges in the battery collide with each other. The reason why the battery will become more and more unused is that at normal room temperature, the kinetic energy inside 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 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 waiting time of the phone will increase.
3, lithium battery repair method three
There is another method, take off the battery, put it for about a week, and slowly consume the electricity, which needs to be completely consumed by the machine first. Then full charge, estimate your current charging time must be very short, after full charge, disconnect and charge again, repeated several times, absolutely effective.
The principle of lithium battery repair method three:
Lithium battery cycle life of about 600 times. If the number of charging times is too much, the thermal motion of the molecule will gradually destroy the microstructure of its internal molecular arrangement, and the storage efficiency will gradually decrease. The freezing process is easy to destroy the original internal structure of the battery, which may increase the ability to charge in a short period of time, but long-term use may not be effective. Once the microstructure in the lithium battery is destroyed, it is impossible to fully recover, and long-term use of this method will accelerate the loss of mobile phone batteries.
The principle of the third lithium battery repair method: deep discharge of the mobile phone is to achieve a deeper degree of recharging by exhausting the internal energy, which requires the use of some unconventional methods. Find a way to connect the phone to a small 1.5V light bulb, and the electricity inside the lithium battery will be transferred to the small light bulb until all the light is emitted. Cell phones need to slowly drain power through lower voltages. Under normal circumstances, if the phone is connected below the rated voltage of 3.6 volts, it will automatically shut down. After discharge, the phone battery can be recharged to last longer.
18650 Lithium Battery Parameter _18650 Lithium battery repair method
18650 lithium battery use
The number 18650 represents the external size: 18 refers to the battery diameter of 18.0mm, 650 refers to the battery height of 65.0mm. Common 18650 batteries are divided into lithium-ion batteries, lithium iron phosphate and nickel-metal hydride batteries. Voltage and capacity specifications are nickel-metal hydride battery voltage is 1.2V Common capacity is 2500MAH, lithium-ion battery voltage is 3.6V Common capacity is 1500MAH-3100MAH.
18650 Battery life theory for 1000 cycles of charge. Due to the large capacity per unit density, it is often used for most notebook batteries, in addition, because of the stable performance of 18650 in the work is very good, widely used in major electronic fields: Commonly used in high-grade light flashlight, portable power supply, wireless data transmission, electric heating warm clothes, shoes, portable instruments, portable lighting equipment, portable printers, industrial instruments, medical instruments and so on.
Generally, 18650 batteries are used more in industry, and few in civilian use, and they are commonly used in notebook batteries and high-end flashlights.
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