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Reasons and solutions for insufficient charging of mobile phone batteries:

1、 The oxidation and corrosion of mobile phone battery contacts lead to an increase in impedance. If the battery is installed inside the phone for a long time and comes into contact with the human body, due to high humidity (such as sweating and water vapor), the battery contacts are prone to oxidation and corrosion. Over time, a large current limiting resistance is generated between the battery contacts and the mobile phone motherboard contacts, which also leads to insufficient charging current and difficulty in fully charging.

Solution: Remove the phone battery, locate the battery contacts, use a cotton swab or pencil tip to cover them with clean toilet paper (if possible, use 0 # sandpaper to cut into small strips), clean each electric shock until the brass color is exposed on the contacts. If there are too many oxides that are difficult to remove, use a pin or a graphic tool tip to remove them one by one, but be sure to remove them one by one. Do not touch both contacts at the same time, otherwise a short circuit may occur and an explosion may occur; Finally, restore the battery and try charging.

The battery cannot be fully charged

2、 The current of the mobile phone charger is insufficient or the charger itself is damaged. For example, if your mobile phone battery has a capacity of 2000mA, using a charger with an output current lower than 2000mA may result in the inability to fully charge for a long time. This is because a low current increases the impedance of the charger, and the actual energy charged into the battery is smaller.

Solution: Check whether the current indicated in the power output output on the label of the charger casing (usually on the plug side) is lower than the battery's own capacity. If so, replace it with a qualified charger;

Mobile phone battery not fully charged

3、 Many netizens have had the habit of charging their mobile phones directly using the USB interface on the front of the computer. When browsing the internet, they connect the phone charging cable to the USB link on the front of the computer for charging. Although this is convenient, it is unknown that in the early days, the power distribution of the computer power was insufficient, and the motherboard limited the USB power output to the front panel of the chassis (such as a maximum output current of 800mA). It seems that the phone is charging normally, but the actual charging current is insufficient, and the charging time may be 10 times that of your usual time. Therefore, you always feel that it cannot be fully charged, or it shows that it is fully charged but the battery decreases as soon as you leave the charger.

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

Solution for phone charging failure and insufficient charging

On the first day many friends bring back the Samsung i9300 Galaxy SIII, they may encounter a very strange problem. Of course, this is only for some friends. After plugging in the power and charging for a few hours, they found that the battery of their phone did not improve, but instead dropped to the bottom!! When I was charging, it only reached 75% after charging all night. What's going on? Is it a battery issue? Or something else?

The editor has found that many friends express their intention to fully charge until it is fully charged. Some say it's due to the ROM of the phone.

In fact, none of the above solutions are very good. After encountering this problem, the editor was initially at a loss. The biggest fear when buying a mobile phone is that it may encounter such problems. Fortunately, after using an Android phone for so long, I suddenly discovered a good solution. That is to install a battery software.

Although I don't quite understand the reason for slow charging, this software has indeed been helpful for charging, as it can be charged normally. But it is helpful for charging mobile phones.

This method may not be suitable for slow charging solutions for all mobile phones, and it may also be ineffective due to different reasons for the same model (such as i9300). However, there is battery software to protect the battery, and charging assistance is also a daily behavior of battery maintenance. Failure to charge due to other hardware issues

1. Insufficient current may or may not be able to charge it in

2. Also, if your phone has some hardware issues, it is recommended to go to a repair center for repair. Simple battery software cannot solve them.

3. For data cable issues, it is best to use the original data cable and charging interface

4. Non original batteries may also be the cause of this phenomenon

5. Use or purchase original data cables and charging equipment for charging. Due to the possibility of internal wiring confusion caused by miscellaneous data cables, normal charging cannot be carried out.

6. Check if there is a problem with the charging interface or the charger. For this type of problem, hardware substitution method can be used to solve it, that is, using the charging device to charge another type of mobile phone for testing to determine the quality of the charging device.

7. Charging time should be sufficient. Some phones may appear to be fully charged after a certain period of time, but they are still charging through a drip. If the charging device is removed at this time, it can lead to incomplete charging, that is, insufficient charging.

8. Take good care of the battery. Generally speaking, charging a phone when its battery level is less than 20% is considered healthy charging. Regular healthy charging can help extend the battery's lifespan and provide long-lasting power.

9. When encountering situations of insufficient charging, it may also be caused by battery aging or decreased power. For such situations, it is possible to try replacing a new battery panel. It is best to choose original factory batteries when replacing batteries, as such batteries are guaranteed in terms of workmanship and quality.

If the above exclusion method is used, the situation of insufficient charging of the mobile phone battery still exists, which is mostly caused by the battery itself malfunction. The editor suggests sending the mobile phone to the relevant service provider for after-sales repair.

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