Reasons and solutions for mobile phone battery charging failure

Mobile phone battery is not full of reasons and solutions:

First, the battery contacts oxidation corrosion caused by increased impedance, the battery is installed in the phone for a long time in contact with the human body, due to humidity (such as sweating, water vapor) is very large, resulting in battery contacts are prone to oxidative corrosion, time and mobile phones A large current-limiting resistor is generated between the motherboard contacts, which also makes the charging current insufficient and difficult to fill.

Solution: Remove the battery of the mobile phone, find the battery contacts, use a cotton swab or pencil tip on the clean toilet paper (conditional can be cut into small strips using 0# sandpaper), clean each electric shock, until the contacts are exposed Brass color, if the oxide is too difficult to remove, you can use a pin or a knife tip to remove one by one, but be careful to remove one by one, cannot touch two contacts at the same time, otherwise a short circuit may occur to explode; finally, restore the battery, Try charging.

The battery cannot be filled

Second, the mobile phone charger current is insufficient or the charger itself is damaged. For example, your mobile phone battery capacity is 2000 mA (2000mA). If you use a charger with an output current lower than 2000 mAh, it may not be possible for a long time. The battery is full, because the current is low and the charger impedance is increased, and the actual charge into the battery is smaller.

Solution: Check if the current indicated in the power output output on the charger housing (generally the plug face) is lower than the battery capacity. If it is, replace the qualified charger.

Mobile phone battery is not full

Third, the mobile phone directly uses the computer front USB interface to charge, many netizens have had this habit, usually the mobile phone charging cable and the computer's front USB link charging when surfing the Internet, so although convenient, but I do not know the early computer power supply Insufficient allocation, the motherboard will limit the power output to the USB power supply on the front panel of the chassis (such as the maximum output current is 800mA). It seems that the phone is charging everything is normal, but the actual charging current is insufficient, and the charging time may be 10 of your usual time. Double, so I always feel that I can't be full, or the display is full, but the battery is reduced when I leave the charger.

Solution: Plug the USB charging cable into the back of the computer case and connect directly to the motherboard's USB interface (usually the rear USB has no output current limit) or use the original charger for charging.

Mobile phone charging does not charge to fill the solution

Samsung i9300galaxysiii may encounter a very strange problem on the first day that many friends bring it back. Of course, this is only part of the friend. After plugging in the power and charging, after charging for a few hours, I found that the power of the mobile phone has not improved, but it has bottomed out! The battery was only 75% charged during the night of charging. What is going on here, is it a battery problem? What other reasons?

It is found that many of the friends said that they were full of energy and knew that they were full. There are also some reasons for the phone ROM.

In fact, the above is not a good solution. The most feared thing about buying a mobile phone is that the mobile phone has such a problem. Fortunately, it has been used for Android phones for so long, and suddenly found a good way. That is to install battery software.

Although I don't understand the reason why the charging is slow, this software does help the charging, and the charging can be properly charged. It is helpful to charge the phone.

This method may not be suitable for all mobile phone slow charging solutions, it may be different from the model (such as i9300) and may not be useful, but there are battery software to protect the battery, and charging assistance is also some of the daily behavior of battery maintenance. Other hardware problems caused by charging

1. If the current is not enough, you will not be able to fill it in.

2. There is also a simple battery software that can't be solved if your mobile phone is a hardware problem or a repair center.

3. Data line problem, it is best to use original data cable and charging interface

4. Non-original batteries may also be this phenomenon

5. Use or purchase the original data cable and charging device for charging. Due to the internal wiring confusion, etc., the data line of the brand may not be charged properly.

6. Check if there is a problem with the charging interface or a charger problem. For such problems, hardware replacement can be used to solve the problem, that is, the charging device is used to charge another mobile phone of the same type to test whether the charging device is good or bad.

7, charging time should be sufficient, some mobile phones after charging for a period of time, the surface appears to display full power, in fact, still drip charging, if you remove the charging device at this time, it will lead to incomplete charging, that is, full of dissatisfaction.

8, do a good job of battery maintenance. Generally speaking, when the power of the mobile phone is less than 20%, charging is a healthy charging, and the healthy charging is often performed, which is beneficial to prolonging the service life of the battery and making the battery have a long-lasting power.

9. In case of charging dissatisfaction, it may also be caused by battery aging or power drop. For such cases, you can try to replace a new battery board. When replacing the battery, it is best to choose the original original battery, which is guaranteed in terms of quality.

If the above exclusion method is adopted, the battery charger is still not full, and it is mostly caused by the failure of the battery itself. I recommend that the mobile phone be sent to the relevant service provider for sale.