When to start charging during regular use? Because the number of charging and discharging is limited, the lithium ion battery should be recharged after using up as much electricity as possible. But I found an experimental table about the charging and discharging cycles of lithium ion batteries. The data about the cycle life are listed as follows: cycle life (10% DOD): 1000 cycles life (100% DOD): 200 cycles, in which DOD is the abbreviation of the discharge depth. It can be seen from the table that the number of rechargeable times is related to the discharge depth, and the cycle life at 10% DOD is much longer than that at 100% DOD. Of course, if the relative total capacity of actual charging is converted into 10% * 1000=100100% * 200=200, the full charging and discharging of the latter is better, but the previous netizen's statement needs to be corrected: under normal circumstances, you should charge the battery according to the principle of recharging after the remaining battery power is used up, but if your battery is not expected to last for the whole day on the second day, you should start charging in time, Of course, if you are willing to carry the charger to the office, it is another matter. When you need to charge in order to deal with the important event that is expected to lead to busy communication, even when the battery has a lot of residual power, you should only charge in advance, because you have not really lost the life of one charging cycle, that is, only 0. x times, and in the past this x will be very small. The principle of recharging the remaining battery power is not to make you go to extremes. It is the same as the long charging, which is very popular

When the battery still has a lot of residual power, you just need to charge it in advance, because you haven't really lost the life of one charging cycle, that is, only 0. x times, and often this x will be very small. The principle of recharging the remaining battery power is not to make you go to extremes. The same popular saying as long charging is to use up the battery of the machine as much as possible, and it is better to use automatic shutdown. This practice is actually just a practice on nickel batteries, which is intended to prevent memory effects. Unfortunately, it has also spread in lithium ion batteries. There was an example of people using automatic shutdown without charging after the warning of low battery power of the machine appeared. As a result, the machine in this example did not respond during the subsequent charging and startup, and had to be sent to the customer service for maintenance. In fact, this is because the voltage of the battery is too low due to excessive discharge, so that the battery does not have normal charging and starting conditions.