For ternary lithium batteries, generally speaking, charging at a low power percentage is a better choice.
Ternary lithium batteries have a characteristic called the “battery memory effect”. If frequently charged at a high power percentage, the battery capacity may gradually decrease, resulting in less power actually available.
In addition, charging at a low charge percentage can better preserve the health and stability of the battery. Additionally, charging at a high power percentage will generate more heat, which will also have some impact on battery life and safety.
Therefore, in order to maintain the health of the ternary lithium battery and extend its life, it is recommended to charge it when the power is low, while avoiding completely depleting the battery . It is also recommended, ifpossible, avoid leaving the battery at a high charge percentage for long periods of time, for example by leaving it fully charged for an extended period of time.
The lithium battery in electric vehicles is best charged when there is about 20% remaining. Do not fully charge it after using it. You can recharge it when there is about 20% left. do not charge it completely. Above 80 is almost enough.
The lifespan of lithium batteries is limited, that is, the number of times they can be charged is limited. Lithium batteries can generally be charged and discharged about 500 times. Do not start charging until they are completely empty. , and you also don't charge it until it's fully charged to 100%. The lifespan of the lithium battery is about 500 charges and discharges, which does not refer to the number of charges, but to the number of charge and discharge cycles.
To put it simply, you start charging when there is 50% left after the first use. After charging, you always start charging with 50% remaining. This can only be counted as one charge and discharge cycle (this explanation is of course not valid. This means that it can be used indefinitely if not used every time. We can only say that the cycle is extended and the duration of use is longer).
Detailed information:
Battery life
I believe that most Some consumers have heard that the lifespan of a lithium battery is “500 times longer”. In order to extend battery life, it is only charged when the battery is completely exhausted. Does it really extend battery life? the answer is negative. The duration ofThe life of a lithium battery is “500 times”, which does not refer to the number of charges, but to one cycle of charging and discharging.
A charge cycle means that all of the battery's energy is used from full to empty, then charged from empty to full. This is not the same as a single charge. For example, a lithium battery only uses half its power the first day, then it is fully charged. If it is still the same the next day, i.e. if you charge it half and charge it twice in total, this can only be counted as one charging cycle and not two.
Therefore, multiple charges may typically be required to complete a cycle. Each time a charge cycle is completed, the battery capacity decreases a little. However, this power reduction is very small. High quality batteries still retain 80% of their original capacity after two or tThree years of charge. Always use it as usual. Of course, lithium batteries still need to be replaced once their lifespan is reached.
The so-called 500 times means that the manufacturer has achieved approximately 625 times of charging at a constant discharge depth (e.g. 80%), reaching 500 charge cycles.
(80%*625=500) (ignoring factors such as lithium battery capacity reduction)
Due to various influences in real life, especially the depth of discharge during charging is not constant, so "500 charging cycles" can only be used as a reference for battery life.
Reference documents:
Lithium battery - Baidu Encyclopedia