Lithium-ion batteries have the advantages of high energy density, no memory effect, stable charging and discharging characteristics, and long cycle life. It is the advantages that make them widely used in consumer electronics such as mobile phones, laptop computers, digital cameras, electric bicycles, electric vehicles, etc. on the product. As a power supply, lithium-ion batteries are very important, and the quality of their lifespan has a great impact on the product.
1. How to charge the newly bought lithium-ion battery charger
There seem to be various arguments about the charging method of the new lithium-ion battery charger. The most widely circulated one is that the first charge needs to be fully charged for 18 hours so that the battery charger can be activated. In fact, this statement is Wrong, traced back to the source, this statement was first for nickel battery chargers, but we ignored that lithium-ion battery chargers are very different from nickel battery chargers, so for lithium-ion battery chargers, Overcharging will only cause incalculable damage to the battery charger itself, not to mention the legendary battery activation effect!
Second, how to use the lithium-ion battery charger correctly
Regarding the use of lithium-ion battery chargers, many people still have such a misunderstanding, that is, in-depth and simple-to-understand have a huge impact on the life of the charger. Scientific research has shown that the service life of lithium-ion batteries There are nearly 500 cycles, so when we use the charger to charge more power, the charger itself will not do much damage. In other words, the charger has little to do with the number of charges.
3. How to charge in normal use
The life of a lithium-ion battery is generally 300~500 charging cycles. Assuming that the power supplied by a complete discharge is 1Q, regardless of the situation that the power will decrease after each charging cycle, the lithium-ion battery can supply a total of 300Q~500Q of power. If you charge 1/2 every time, you can charge 600-1000 times; if you charge 1/3 every time, you can charge 900-1500 times; if you charge randomly, the number of times is uncertain. In short, the total power that can be added to 300Q-500Q is constant. Therefore, the life of a lithium-ion battery is related to the total charge capacity of the battery, but has nothing to do with the number of charges. Deep discharge and deep charge or shallow discharge and shallow charge have little effect on the life of lithium-ion batteries.
In fact, shallow discharge and shallow charge are more beneficial for lithium batteries. Only when the power module of the product is calibrated for lithium batteries, is it necessary to deep discharge and charge deeply. Therefore, in the daily use process, it is not necessary to recharge with photoelectricity, and it can be charged at any time, with convenience first.
4. Charging at high temperature
We all know that if the lithium-ion battery of a mobile phone is used for a long time, the temperature will continue to rise, and the lithium-ion battery used in the mobile phone will self-discharge under high temperature conditions, which also explains why the power consumption is faster when the temperature of the mobile phone is high. s reason. And if you need to charge the battery at high temperature, it will not only fail to achieve the effect you expect, but the life of the lithium-ion battery of the mobile phone will be reduced.
Lithium-ion battery charging precautions
①Prevent the temperature from being too high during charging
If the charging temperature of the lithium-ion battery is higher than the specified operating temperature (35°C), the power of the lithium-ion battery will continue to decrease, that is, the power supply time under full charge will be shortened, which will damage the battery quality and reduce the battery life.
②Prevent the temperature from being too low during charging
If the battery is charged in a low temperature environment (below 4°C), the power of the battery will continue to decrease, and even it will not be able to charge the battery, but the situation is different from that in a high temperature environment, and it is not permanent damage. , the battery level will also return to its previous state.
③ Frequent use
Frequent use will keep the electrons in the lithium-ion battery in a flowing state, which is beneficial to the extension of its life. If you don't use it often, remember to complete a charging cycle for the lithium-ion battery every month, that is, deep discharge and deep charge.
④For lithium-ion batteries, use a special charger for lithium-ion batteries and follow the instructions, otherwise the battery will be damaged or even dangerous.
⑤ It can be said that the most fundamental method is to prevent the frequent use of lithium-ion batteries, but even if you usually use an external power supply, it seems that you do not use batteries, but in fact, the aging process of batteries has been going on over time.
