When the notebook computer has no power, it is connected with an external power adapter. Is there a problem when it rushes?

Yes, but for the use of notebook batteries, I have listed several misunderstandings about the use of notebook batteries here, please pay attention. Myth 1: To buy a laptop, you need to charge and discharge it repeatedly for three times to activate the battery. Unless the laptop you bought is a product that has been in stock for more than one year, you don't need to do this, because the battery cell has been activated when it leaves the factory, and the cell has passed the test equivalent to activation when it is packaged into a notebook battery, so the battery you got has been activated, and it is meaningless to charge and discharge it three times to increase the battery loss.

Myth 2: The first charge must be enough 12 hours. This is suitable for the early Ni-MH battery model without battery control circuit, but it is a joke for the notebook battery with intelligent charge and discharge control circuit now. When the notebook battery is fully charged, the charging current will be automatically cut off. Even if you continue to charge 120 hours, the state will not change. Generally speaking, even the slowest charging machine, instead, when you get a new machine, you should first discharge the electricity and then charge it.

Myth 3: The battery needs to be calibrated regularly and charged and discharged completely once a month. This is a necessary work for Ni-MH battery with strong memory effect, but for lithium battery, this cycle is too frequent. Although the lithium battery did not completely eliminate the memory effect, it greatly weakened the memory effect. If the battery is used frequently, it should be discharged to a relatively low level (about 10~ 15%) for recharging, but if it is discharged to the point where even the machine cannot be turned on (0 ~ 0). If you seldom use batteries, just do it once every three months.

Myth 4: Calibration can improve battery capacity. The so-called correction means that when the actual capacity of the battery is different from the capacity recorded in the control circuit, the battery is deeply charged and discharged, so that the control circuit refreshes the record and makes it close to the actual situation of the battery. This is an operation to display the true capacity of the battery instead of increasing the capacity. The key factor here is the actual capacity of battery. If the actual capacity of the battery is higher than the capacity recorded in the control circuit, calibration can increase the apparent capacity of the battery. If the actual capacity of the battery is lower than the capacity recorded in the control circuit, the calibration will reduce the apparent capacity of the battery, which is also the reason why many people argue endlessly about the calibration effect. Remember, calibration is to show the true capacity of the battery and eliminate the deviation between the battery and the control circuit. Whether the displayed capacity increases or decreases depends on the state of the battery itself, not your calibration. It is very likely that the battery capacity will be greatly reduced due to deep discharge damage during calibration. Many manufacturers provide battery calibration procedures. Windows version and BIOS version are available. It is best to use these procedures for calibration. Windows version can work while working, BIOS version can't: an extension of machine habits: compatible chargers can also use laptops, which consume much more power than mobile phones. In the most extreme case, the power supply needs to charge the battery at the same time to meet the power supply required for the machine to run at full speed. Generally, there is no compatible charger for notebook computers, because the voltage, current and even interface of each model are different. A "compatible charger" that can be used in various notebooks is likely to be more expensive than the original charger, even if the interface is the same. If the voltage and current are lower than the nominal value of the machine, the battery may not get enough charging current when the machine works at full speed, which is very harmful to the battery. If the voltage and current are much lower than the nominal values, you may even find that you can't start the machine at all, or you can start it but you can't charge it. Therefore, when choosing the power supply, it is best to choose the same as the original factory. If it is not found, please note that the voltage and current must conform to the nominal values of the machine. The interfaces of different products in the same factory are generally the same, but the voltage and current may be different. Please pay attention to this!

Myth 6: The battery needs to be fully charged (or discharged) to be stored. Whether it is fully charged or discharged, it is actually incorrect. Long-term storage of discharge light will make the battery lose its activity, and even lead to self-locking of the control circuit, which will bring security risks. The most ideal storage method is to discharge to about 40% before storage. Lithium batteries are afraid of humidity and high temperature, so they should be stored in a cool and dry place, but the temperature should not be too low, otherwise the capacity will be greatly increased.

Myth 7: The battery is not working, so you can change it yourself. Many people's batteries are so deadly. Manufacturers seem to have expected someone to do this. Many brands of notebook batteries are designed with self-locking function. Once the battery is separated from the control circuit, the circuit will enter the self-locking state, which can only be unlocked by special means. Before this, the control circuit will not work, which means that the battery is equivalent to scrapping. The battery core of notebook battery is not a dry battery that can be replaced at will. If you have to change the battery, please remember to find a special battery maintenance company to deal with it. It is a trivial matter to change it yourself. The frustration and frustration after the failure of that kind of effort is the worst.

Myth 8: 100% has not been charged after 99%, and there is almost no possibility of explosion if the notebook battery continues to be charged. At most, it will emit high heat, which will cause the shell to melt, but it will rarely cause an open flame. A few accidents that have been announced are actually caused by poor production technology and short circuit in use. Even if most of these short circuits are disconnected by the protection circuit in the battery, they will not be damaged more. Unless the battery is short-circuited before the protection circuit (it should be caused by the battery explosion time of Compaq notebook before), I have only seen two such cases in the three years when I have been in extensive contact with notebooks. On the contrary, there are many such things in the mobile phone. In the final analysis, it is still the quality of the battery. There are a lot of inferior assembled batteries in mobile phones, and notebook computers almost never sell such batteries, because no model has enough electricity to produce compatible batteries. The reason why the charge after 99% is less than 100% is often because the record of the battery control circuit is different from the state of the battery itself, and the battery has never reached the voltage recorded by the control circuit, so the control circuit has been charging, but the battery is actually full. This problem can usually be solved by correction, but it doesn't matter even if it is not corrected, because most charging circuits will be manually disconnected after a long time. Even if the current refresh rate of intelligent automatic recording is 100%, even if it is a fool-like design that keeps going, it will not cause harm because of the minimal current at this time. At present, there are basically temperature detection circuits in laptop batteries. When the battery temperature is too high, most control circuits will forcibly disconnect the battery to prevent the temperature from rising further. Therefore, the probability of laptop battery charging explosion is no less than the first prize in the lottery. No matter how scientific the maintenance measures are, the battery will age, just like how magical cosmetics and maintenance can't stop the beauty from getting old, but at most it just delays it. The only way to avoid battery aging is not to use it (so many people will choose to take it off), but this makes the notebook computer meaningless ... The battery will always age with the passage of time, and it is actually a semi-consumable. Therefore, almost all manufacturers of notebook computers generally only guarantee the battery for one year regardless of the warranty period of the host. If the battery is properly maintained and used once a week, it can still maintain 60%~70% capacity after one year, which is probably the case with my own battery. If you really think it is torture for you to watch the battery languish, the best way is to take it off and pray that there will be no power failure or kick off the plug, or buy an extra one. As long as batteries and notebooks bring enough value and happiness, I think they will be sacrificed.