This method is useless. The correct method is: charge for half an hour, whether charged or not, unplug the charger, wait for a few minutes, then charge continuously for 12 hours. If the battery has the possibility of being repaired, it will be reactivated. If the battery is worn out, it will not work.
Can cell phone batteries be frozen in the refrigerator?
Non-repairable
Aging of lithium batteries is usually caused by disintegration of the cell material and is irreversible. Long-term freezing is actually a process of forced deep discharge, and this can occur to the extent that even these protective circuits are ineffective. The lifespan of lithium batteries only lasts the first few years. The decrease in battery capacity is due to an increase in internal resistance caused by oxidation (which is the main causedecrease in battery capacity). Eventually, the cell's resistance reaches a point where, even though the battery is fully charged, it is unable to release the stored energy.
Detailed information:
Influencing factors
Lithium batteries can generally be charged and discharged 300 to 500 times. It is better to partially discharge lithium batteries than to fully discharge them, and to avoid frequent full discharges. Once the battery leaves the production line, the clock starts ticking. Whether you use it or not, the lifespan of lithium batteries only lasts the first few years.
The decrease in battery capacity is due to an increase in internal resistance caused by oxidation (which is the main cause of the decrease in battery capacity).battery). Eventually, the cell's resistance reaches a point where, even though the battery is fully charged, it is unable to release the stored energy. The aging rate of lithium batteries is determined by temperature and state of charge.
If possible, try to charge the battery to 40% and place it in a cool place. This allows the battery's own protection circuits to operate for a long life. If the battery is exposed to high temperatures after being fully charged, it will cause serious damage to the battery. (So when we use fixed power supply, the battery is fully charged and the temperature is usually between 25-30°C, which will damage the battery and cause its capacity to decrease).
Baidu Encyclopedia - Lithium Battery
Can lithium batteries really be resurrecteded by freezing them in the refrigerator?
It is not recommended to freeze cell phone batteries directly in the refrigerator or freezer, as this may have a negative impact on the battery.
First of all, the normal operating temperature of cell phone batteries is generally between 0℃ and 45℃. If the battery is exposed to temperatures below 0°C for an extended period of time, its charging capacity and performance may be impaired. This is because at low temperatures the electrolytic liquid becomes viscous, preventing the transfer of electrons within the material. Additionally, extremely low temperatures can lead to serious problems such as melting and battery leaks.
Second, when the mobile phone battery is removed from a low temperature environment, water mist may form on the surface of the battery due to differences in temperature.temperature, which will affect the normal operation of the battery and may compromise safety. risks such as short circuits.
Finally, it should be noted that lithium-ion substances contained in cell phone batteries are hazardous waste. If a battery is damaged, it can leak harmful substances and have consequences for health and the environment. Therefore, do not handle or dispose of batteries carelessly and follow safe disposal practices.
In summary, in order to protect the performance and safety of mobile phone batteries, it is not recommended to freeze the battery in the refrigerator or freezer. If you need to store the battery temporarily, please choose a dark, dry and temperature-friendly place to keep it.
Who taught you? This method simply won't work.
After a battery failure rechargeable, some can be repaired, but their performance has deteriorated and some cannot be repaired.
To repair a rechargeable battery, you need to use a special instrument called a “battery repair instrument”; there is also a more advanced charger that can also be repaired. This charger not only has charging function, also comes with battery repair function.