Correct charging method for lithium batteries.

Correct charging method for lithium batteries.

The lifespan of lithium batteries is roughly 300-500 charging cycles. Assuming that the amount of electricity supplied by a complete discharge is 1Q, without considering the increase in electricity after each charging cycle, the lithium battery can supply or supplement a total of 300Q-500Q of electricity during its lifespan. From this, it can be inferred that assuming 1/2 is used to charge each time, it can be charged 600-1000 times; Assuming that 1/3 is charged each time, it can be charged 900-1500 times. Similarly, assuming random charging, the number of times is not fixed. In short, regardless of the charging method, the total amount of electricity added from 300Q to 500Q remains constant.

So, how can we also check: the lifespan of lithium batteries is related to the total charging capacity of the battery, not to the number of charging times. The impact of deep discharge and shallow charge on the lifespan of lithium batteries is not significantly different. So, some MP3 manufacturers advertise that a certain model of MP3 uses powerful lithium batteries that can be charged more than 1500 times. ”This is simply deceiving consumers with ignorance.

In theory, shallow discharge and shallow charge are more beneficial for lithium batteries. Only when the power module of the product is calibrated for lithium batteries, there is a need for deep discharge and deep charge. So, products powered by lithium batteries do not have to be limited to the process, everything is convenient first, can be charged at any time, and there is no need to worry about affecting their lifespan.

Assuming that lithium batteries are used above the polite operating temperature of 35 ° C or above, the battery's charge will occasionally increase, meaning that the battery's power supply time will not be as long as usual. Assuming at what temperature the device needs to be charged, the damage to the battery will be greater. Even storing batteries in hot conditions cannot prevent damage to the quality composition of the battery. So, staying at a suitable operating temperature as much as possible is a good way to extend the lifespan of lithium batteries.

Assuming the use of lithium batteries in low temperature conditions, i.e. below 4 ° C, it will also be found that the battery's usage time has increased, and some original lithium batteries of mobile phones cannot even be charged in low temperature conditions. But don't worry too much, this is just a temporary situation and not suitable for use in high temperature situations. Once the temperature rises, the molecules in the battery are heated and immediately restore to their previous level of charge.