In the matter of charging laptops, many people have had such confusion:
Should the notebook be charged while using it, or should it be recharged when it is out of power? After full charge, can you not unplug the plug...
Today, the professor will give you an answer to these questions
Notebooks are charged out of power?
Some people have proposed that the notebook will hurt the battery while charging, so it should be used to recharge without electricity, that is, to put it in a "deep discharge" state. In fact, this statement is unscientific.
Notebooks do not need to be completely discharged, depending on the nature of the battery.
Notebook batteries are broadly divided into three categories: nickel-cadmium batteries, nickel-metal hydride batteries and lithium batteries.
In the past, many notebooks used nickel-cadmium batteries and nickel-metal hydride batteries, of which only nickel-cadmium batteries had a memory effect, and it was necessary to completely use up the power and then charge it completely. If the discharge is not clean, it will cause the battery capacity to decrease.
However, now, mainstream notebooks use lithium batteries and have no memory effect. On the contrary, if the lithium battery is often in a low-power state, the chemical activity of the battery decreases, and the consumption of the battery will be greater.
While charging while using, charging to full power is still charging?
Compared with the situation of running out of power, in fact, many small partners are more accustomed to using it while charging, and often the full charge continues to charge.
In this regard, some people believe that when the battery is in a 100% fully charged state and has been charging, it will cause "overcharge" problems and cause damage to the battery.
Don't worry so much.
Today's notebooks come with an efficient power management system. Under the control of this system, once the battery is fully charged, it will automatically stop charging the battery and switch to only the alternating current supplied to the host, thus avoiding damage to the battery.
However, although the notebook supports charging while using, it is necessary to pay special attention to a problem, that is, heat dissipation.
We know that charging will be accompanied by heat, if it is used while charging in a high temperature, not conducive to heat dissipation environment, it may lead to heat accumulation, and eventually lead to damage such as battery drums.
Therefore, when the notebook is charged while using, remember to stay away from the high temperature environment and stay away from the unventilated environment.
Can I not charge it for a long time?
Some small partners have not used their computers for a long time due to various reasons. So, if the computer is not used for a long time, can it not be charged?
In fact, when the battery is always in a low-charge state, the battery will fall into an over-discharged state, and slowly the notebook will also enter a "strike" state. In the long run, the battery will become more and more unusable.
Therefore, even if the notebook is not used, it is necessary to take it out from time to time to charge it to maintain the health of the battery.
Don't pull the plug when you're fully charged?
Many people are accustomed to only unplugging the interface after charging, leaving the charging head on the plug, eliminating the cumbersome of unplugging.
This habit is also not worth advocating.
On the one hand, it consumes electricity. When the charger is connected to the power supply, even if it is not charging, there will be current passing through the internal coil of the charger, which will produce power consumption.
Although the power consumption is small, but the accumulation of less into more, will cause waste of electricity.
On the other hand is security.
In principle, there is no obvious safety hazard when the charger is plugged in the row plug. However, if you use a charging device with poor quality or aging and damage, it will cause accidents such as short circuits, electric shocks, and fires!
Therefore, for safety reasons, it is not recommended to often do not unplug the charging head.
Chargers can be mixed?
Many people have forgotten to bring a charger experience, at this time you may first borrow one to use. However, will the mixed use of chargers hurt the computer?
In principle, as long as the interface and charging protocol match, different chargers can be shared, but pay special attention to the adaptation of the charger to the device power.
If the maximum power of the charger is higher than or equal to the standard power of the notebook, then you can use it with confidence.
Regular chargers are built-in smart chips that can automatically identify the power of the notebook and intelligently adjust the voltage to distribute the appropriate current. Moreover, there is also a circuit control system inside the notebook to prevent excessive current from entering the device.
For example, using a "Greenlink 100W Gallium Nitride Charger" compatible with PD3.0, QC4.0 and other protocols to charge the "Huawei MateBook 13" that supports 65W power, the charger will recognize that the computer supports 65W, and trigger a 65W fast charge downwards. If you are charging an iPhone 12 phone that supports 20W power, the charger will be adjusted to 20W fast charging mode, charging to 60% in half an hour.
Conversely, if you charge a high-power notebook with a low-power charger, there is a problem.
In the process of charging high-power devices, the charger will be in full load for a long time, which will easily lead to serious heating of the charger and loss of it, and will also accelerate the aging of the notebook battery.
Therefore, in order to maintain the health level of the device, it is not recommended to use a low-power charger to charge a high-power computer.
The above is the notebook charging knowledge for everyone in this issue, these charging habits, everyone has won a few?