Summary of problems with battery damage caused by smart phone charging

What are the dangers of a cell phone full of electricity without pulling out the charger?

I believe that many of my friends, including Xiaobian, will not remove the charger from the socket for fear of trouble after they fully power their mobile phones. In order to facilitate the re-charging, they will directly plug in. In fact, this method is not correct. It not only wastes electricity, but also has a great security risk.

Shen Jian, Nokia enterprise information manager, said in an interview with the media that their research found that more than 3/4 of the power consumption of mobile phones is caused by the absence of charger plug-in after the mobile phone is fully powered. This kind of waste is a big data, because there are more than 0.6 billion mobile phone users in China, charging every day and wasting every day. This kind of phenomenon should attract high attention of mobile phone users. It is necessary to develop the good habit of pulling out the charger and selling after charging power, which not only saves power and money for the family, but also saves resources for the society.

Industry insiders also believe that, after charging, do not unplug the charger plug-in, but also easily cause fire, electric shock and other security risks. After charging, do not unplug the plug-in pin, so that the charger is still in the working state, easy to make the charger aging, resulting in safety accidents, and even fire, explosion, electric shock and other accidents. It is worth mentioning that many mobile phone users go to work without plugging the plug-in after power-charging, or no one at home, or there are only old people and children at home, these all increase the possibility of unexpected unsafe factors and cause harm to family members.

After knowing the danger of phone power-off without a charger, you must remember to unplug the charger after power-off to develop a good mobile phone charging habit.

Whether the battery is damaged when the phone is powered on for a long time

With questions, let's explore the problem of long-time mobile phone charging!

Test tool:

Electric power tester

Mobile phone charger

Mobile phone charger

Digital camera landline charger

Test method:Test in sequence using a power tester

Power consumption when the mobile phone is directly charged for idle, charging, and full

Power consumption when the mobile phone is filled with free, charging, and full

Digital camera landline charging idle, charging, full power consumption

First, the power consumption of mobile phone landline charging is 0.0 W.

Power consumption of the mobile phone holder during charging: 3.3 w

 

Full power consumption of mobile phone: 0.0 W

Power consumption when mobile phone traffic goes idle: 0.0 W

Power consumption of mobile phone direct charge: 4.5 W

 

Power consumption after mobile phone direct traffic is full: 0.0 W

Power consumption of digital camera landline charging: 0.0 w

Power consumption of digital camera landline charging: 0.0 w

 

Full power consumption of digital camera: 0.0 w

Conclusion: through the above tests, we can draw a positive conclusion that even a long time of charging digital devices has no impact on the battery and machine, and the charging is complete, the Charger's IC circuit will automatically cut off the current input. In addition, the current lithium battery equipment is generally equipped with dual protection, the first is the power management chip inside the machine, the second is the battery Protection Board. Even if the power management chip is ineffective, the battery protection board can prevent overcharging and protect the battery. Therefore, under normal circumstances, even a long period of charging will not cause serious consequences such as battery explosion.

From the simple circuit diagram of the mobile phone charger, it can be seen that after the charging device is fully charged, the IC circuit will automatically judge and cut off the power input, but because many charging devices have LED lights, even after the switch output is disconnected, a very small fraction of the current is retained for the LED display (the power loss of a single computation is negligible, however, it is a waste of power to put tens of millions of devices together ).

Notes for the first charging of new mobile phones

Most of the new mobile phones that have just been bought contain about 30%-40% of the internal power. One is for on-site detection, and the other is for the convenience of customers in the future.

After buying a mobile phone, you can easily configure the frequently-used settings as you like. The rest of the time is to download some frequently-used software. In this way, the battery is basically useless.

We should shut down and charge the cell phone battery at 5%. Do not wait until the cell phone battery has no power and the battery is 1%, because this is a wrong understanding.

When charging, it is best to choose direct charging, and the mobile phone is turned off. Because the cell phone is inside a lithium battery, the first charge does not need to rush to more than 10 hours, you only need to charge according to the normal time, generally 8 hours.

After the charge is complete, unplug the power supply and perform routine operations. Generally, we recommend that you use the battery for the first three times. After the battery is used up for 8 hours, the battery can be activated after the charge-discharge cycle and the normal capacity can be restored.

Misunderstanding:

The first three charging times require more than 12 hours, "said the explicit statement continued from the nickel battery (such as nickel-cadmium and nickel-MH.

Charge can be charged with a charging treasure, not necessarily need DC.

The above are the points that must be paid attention to when the mobile phone is charging for the first time. Do you understand them? You can use the above method to charge your new phone in the future.