Guide: Lithium batteries are widely used in mobile phones and other products at present, but there are several misunderstandings about how to deal with them, especially the statement that "the first three times of charging take more than 12 hours" is unpopular, but is this kind of communication accurate? Then I will tell you the answer~~
250W lithium battery charger produced by Dongguan Fuyang Electronics Co., Ltd
1¡¢ Charging Method for Lithium Battery Charger - If Very New Battery Charging is Used
To deal with the charging methods of new batteries, the government has spread a lot of "the first three main batteries are charged for more than 12 hours to activate the battery", but is this kind of statement accurate? Is it still wrong~~ The answer is wrong~~
The first reason is that this kind of statement is continuous from nickel battery, but the charging and discharging characteristics of lithium battery and nickel battery are very different. For lithium battery, over-discharge and overcharge will cause significant damage to the battery, so it is very good to charge according to the standard time and standard method, and remember not to charge more than 12 hours.
The second reason is that the lithium battery will automatically stop charging after it is fully charged, but if it is placed on the charger continuously, it can present a discharge-charge cycle. The characteristics of the battery's charge-discharge protection circuit can change, and the battery is at the edge of risk.
2¡¢ Charging method of lithium battery charger -- how to charge in abnormal use
How to charge lithium batteries during abnormal use has been debated. Some partners have said that "it is necessary to actively shut down the battery and recharge it when there is no electricity left." However, some partners have demonstrated that "charging as needed" to deal with this problem. The editor's behavior of not stopping is theoretically stated, but he has discovered that there is no need to do so. Why? Let me have a look~~
The reason is that the service life of lithium battery is usually 300~500 charging cycles. Assuming that the power supplied by a complete discharge is 1Q, the lithium battery can supply a total of 300Q~500Q power without considering the future power reduction of each charging cycle. If you use 1/2 charge each time, you can charge 600-1000 times; If you use 1/3 of it every time, you can charge it 900-1500 times; If it is charged randomly, the number of times will vary. In short, the total amount of 300Q-500Q power that can be compensated is constant, so the life of lithium battery is related to the total charge capacity of the battery, but it is related to the number of charges. Deep and deep charging or shallow and shallow charging may have little impact on the life of lithium battery.
Reason 2: In fact, shallow and shallow charging is more beneficial to lithium battery. Only when the power module of the product is calibrated for lithium battery, deep and deep charging is needed. Therefore, in the normal process of utilization, it is possible to recharge without being restricted to photoelectric recharging, and to recharge as needed, taking convenience first.
3¡¢ Lithium battery charging method -- precautions
Note 1: Avoid too high temperature during charging
If the temperature during charging is higher than the specified operating temperature (35 ¡æ), the battery capacity of the lithium battery will continue to decrease, which means that the power supply duration will be prolonged when the battery is fully charged, resulting in damage to the battery quality and lower battery life.
Note 2: Avoid too low temperature during charging
If the battery is charged at low temperature (below 4 ¡æ), the battery power will continue to decrease, or even fail to charge. However, the situation is different from that under low temperature, and it will not be permanently destroyed. When the temperature is reduced to appropriate, the battery power will return to the previous state.
Note 3: Frequently use
Frequent use will keep the electrons in the lithium battery in active state, which is conducive to the extension of its life. If it is not used frequently, remember to realize a charging cycle for lithium battery every month, that is, deep discharge and deep charge once.
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