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That is to say, the voltage output of the power bank exceeds the voltage that the mobile phone can bear, it is recommended not to use the power bank to charge the mobile phone, and use the original charger to charge the mobile phone.
Voltage, also known as potential difference or potential difference, is a physical quantity that measures the difference in energy between a unit charge in an electrostatic field due to different potentials. Its magnitude is equal to the work done by a unit positive charge to move from point A to point B due to the action of an electric field force, and the direction of the voltage is specified as the direction from the high potential to the low potential. The SI unit system of voltage is volts (V, referred to as volts), and the commonly used units are millivolts (mV), microvolts (V), kilovolts (kv), etc.
This concept is similar to the "water pressure" caused by the high and low water level. It should be pointed out that the term "voltage" is generally only used in electrical circuits, while "potential difference" and "potential difference" are generally applied to all electrical phenomena.
It is normal for this voltage to be a little higher, because if there is no line supplement, you bring such a long wire for charging, the line has internal resistance, then the voltage lost on it will be unequal, the worse the line is thinner, the more voltage is lost, so the voltage through the charging cable to the mobile phone is almost only 5V. In order to adapt to more customers, charger manufacturers generally take this line loss into account, because some customers use a particularly thin charging cable in order to save costs, and the outside does not come out, and there are very few copper wires inside. Secondly, even if the charging voltage of the mobile phone is reached, the mobile phone will not be broken, and it will not be exceeded.
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It is possible that the charger device has been broken down, causing the output voltage to exceed the charging voltage, and it is recommended that the user replace other charger devices to charge the mobile phone.
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Summary. Check whether a non-original charger or data cable is used, resulting in unstable charging of the mobile phone, and generally replace it with the original charger and data cable to restore normal. 2. Check whether the connection between the charger and the data cable, the data cable and the mobile phone charging port is not in good contact, and reconnect and fix it; If necessary, you can change the charger or connect the data cable.
3. Check whether the power supply connected to the charger has unstable voltage, you can connect a plug-in board, and then connect the charger to charge. 4. Check if there is a problem with the system of the mobile phone that causes the charging to be unstable, you can restart the mobile phone to solve it; If necessary, you can consider restoring your phone system to factory settings or upgrading to the latest version to solve the problem. 5. It may also be that there is a problem with the hardware of the mobile phone that causes unstable charging, such as the failure of the mobile phone charging port, battery aging or failure, internal circuit failure, motherboard chip or other component failure, etc., it is recommended to contact Xiaomi's after-sales service for maintenance and resolution.
The voltage is unstable when the Xiaomi charger is plugged in.
Hello, glad for you, you've been waiting for a long time.
Check whether a non-original charger or data cable is used, resulting in unstable charging of the mobile phone, and generally replace it with the original charger and data cable to restore normal. 2. Check whether the connection between the charger and the data cable, the data cable and the mobile phone charging port is not in good contact, and reconnect and fix it; If necessary, you can change the charger or connect the data cable. 3. Check whether the power supply connected to the charger has unstable voltage, you can connect a plug-in board, and then connect the charger to charge.
4. Check if there is a problem with the system of the mobile phone that causes the charging to be unstable, you can restart the mobile phone to solve it; If necessary, you can consider restoring your phone system to factory settings or upgrading to the latest version to solve the problem. 5. It may also be that there is a problem with the hardware of the mobile phone that causes unstable charging, such as the failure of the mobile phone charging port, battery aging or failure, internal circuit failure, motherboard chip or other component failure, etc., it is recommended to contact Xiaomi's after-sales service for maintenance and resolution.
1. It may be that the current of the charger is unstable, it is recommended that you try another charger. 2. It may be that there is too much dust in the mobile phone and the contact is poor, resulting in intermittent charging. 3. It may be the unstable charging caused by poor contact of the socket.
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Hello, I am glad to serve you and make the following answers for you: Solutions to the high charging voltage of Xiaomi Mi 13:1
First, check if the charger matches the voltage of your phone, and if not, replace the charger. 2.Check your phone's battery for damage, and if so, replace it with a new one.
3.Check whether the charging port of the mobile phone is damaged, if there is damage, please replace it with a new one. 4.
Check your phone's charging cable for damage, and if it is, replace it with a new one. 5.Finally, check your phone's software for damaged loose socks, and if socks are damaged, reinstall the software.
Personal Tips:1When charging with the Xiaomi Mi 13 mobile phone, you should pay attention to check whether the charger, battery, charging interface, charging cable and software are damaged, so as to avoid the problem of excessive voltage.
2.When charging with a Xiaomi Mi 13 phone, you should pay attention to check whether the charger matches the voltage of the phone, so as not to cause the problem of excessive voltage. 3.
When using the Xiaomi 13 phone to charge, you should pay attention to check whether the phone's software is damaged, so as not to cause the problem of excessive voltage.
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1.For the charging of our mobile phones, if there is a problem, it needs to be solved in time, otherwise it will seriously affect the use of our mobile phones.
2.For mobile phones that cannot be fully charged, we can replace the mobile phone charger to help us solve the problem that the mobile phone cannot be charged.
3.If the mobile phone charging problem is caused by the insufficient voltage of the mobile phone battery, you can try to use the dock power to complete the mobile phone charging.
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Poor contact.
You change the data cable.
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The interface you said,English crash may enter engineering mode,The robot will appear when repairing the system or restoring factory settings,It may be that these background processes cost a little,Shutdown will not close all processes,Restart will completely close the process,Don't believe it,Look at the memory,The memory after restarting is more than the memory when the phone restarts after shutting down。
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The test time was short, and many problems were not found. So it's not perfect. It is recommended that you use an Apple high-imitation phone.
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The first power strip.
Second battery.
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It is estimated that it is broken, your battery may be broken, I think it is better for you to change the battery, this may be because the battery is not very good. Here are some of the inconsequential, encyclopedia!!
The working process of the battery receiving electrical energy from the external circuit and converting it into the chemical energy of the battery. After the energy of the battery is consumed by discharge, it can be restored by charging and can be re-discharged, constituting a charge-discharge cycle. Generally, it is charged with DC current (also with asymmetric AC current or pulse current).
In different cases, different charging methods are used, such as constant current charging, constant voltage charging, floating charging, trickle charging, emergency charging or a combination of these methods.
According to the formula of electricity = voltage * current * time, in the case of fixed power, the charging time can only be shortened by increasing the voltage or increasing the current.
High-voltage charging: high-voltage and low-current mode, increasing voltage, requires multiple step-down circuits to be designed in the charging circuit. When charging, the charger will heat up, and the phone will also heat up, and the safety of the battery will be affected. [1]
Low-voltage charging: low-voltage high-current mode, increasing current, introducing MCU monolithic microcomputers in both charger circuits and battery circuits to replace step-down circuits. Under the premise of low voltage and high current, the output of the current with segmented cross-flow is realized through the open voltage loop.
VOOC flash charging uses the solution of low voltage and high current to ensure safety and solve the problem of mobile phone charging and heating. [1]
Classify. Battery charging is mainly divided into: fast charging and ordinary charging.
A total of 2 sheets. Charge.
Mobile phone battery fast charging is mainly divided into three categories: VOOC flash charge fast charging technology, Qualcomm Quick Charge fast charging technology, MediaTek Pump Express Plus fast charging technology.
The main fast charging technologies are:
VOOC flash charging.
There are two general directions to increase the charging speed: one is to increase the voltage, and the other is to increase the current. Increasing the voltage increases the amount of heat generated during charging, accelerates battery aging, and can pose a safety hazard, so the actual effect is not good. In contrast, increasing the current is more realistic.
The VOOC flash charging technology uses a low-voltage and high-current mode to ensure the safety of the charging process.
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Don't charge, try a different charging head.
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If your phone won't charge, we recommend you try it as follows:
1.Turn off the battery, remove the battery, and use a cotton swab to wipe the battery and phone contact points.
2.Use the original charger to connect to the home power source for charging.
3.Replace the power outlet, try or change a data cable to connect to the charger for charging.
4.If you can't charge it with a cable charger, replace the battery or use a universal charger if possible. If other charging equipment can charge the battery, it is possible that your cable charger is not in good contact and it is recommended to replace it.
5.If the phone can be turned on normally, it is recommended to back up the data in the phone (such as contacts, multiple files, etc.) and restore the phone to factory settings. If the problem still exists according to the above methods, please bring the purchase invoice, warranty card and machine to the after-sales service center for inspection.
If only from the point of view of charging, the problem is not big, because the requirements for the data cable when charging are actually very low, only when it comes to the transmission of data, there will be high requirements, ordinary imitation wire, may be reduced in the transmission rate of data, but there is no impact on the service life of the mobile phone, the speed of the original Apple cable will be faster when transmitting data, and the ordinary imitation line may be a little slower.
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