Why does the phone clearly show that it is charging, but it is still less than 20?

1. There is a problem with the battery level display: turn off and restart, check whether it returns to normal;

2. Whether to use the original charger and data cable, you can replace the charger and data cable;

3. Check whether the contact between the charger and the socket is good, and you can replace the socket to try;

4. If the mobile phone exceeds or falls below a certain temperature value, it may not be able to be charged, so try to change the charging environment;

If your Samsung phone can't be fully charged, it is recommended

1.Check that you are using an original charger. If not, try replacing the original charger.

2.Try replacing it with a different power outlet.

3.If the battery supports removal, it is recommended to reinstall the battery or replace it with another original battery to charge it again.

4.Update your phone's system version: Settings - About Phone (About Device) - Manual Update Automatic Update (Software Update System Update - Update). Note: Please back up the data in your device before upgrading.

If the above operation does not work, please bring the purchase invoice, repair card and machine to the nearest service center for inspection.

、About the aboveThe phone is clearly shown to be charging, but it can't be chargedFirst check if the original charger is normal.

Check the original chargingThe inside of the data cableWhether there are problems such as poor contact.

CheckCharging data cable plug and mobile phone charging interface,See if there is any internal contact between the two.

Check the inside of your phoneBatteryWhether it is normal or not(For this inspection, it is recommended that it is best to ask a professional master to test the mobile phone battery).

After the above thorough checks, if all are normal, stillThe phone doesn't charge upIn this case, it is very likely that the charging control circuit on the motherboard has a hardware failure.

1. The system of the mobile phone is faulty, which causes problems with the battery level display. This kind of problem is the easiest to solve, you can directly shut down and restart, which is equivalent to data refresh, and the general power display will return to normal. 2. The charger is faulty.

This malfunction is the main reason why the phone cannot be charged. So how to judge the quality of the charger. It's actually very simple, try it with another charger.

If it can be charged, then it can be concluded that the charger is faulty. When you encounter this kind of problem, you have no choice but to buy another charger. 3. Poor contact between the charger and the mobile phone.

This is also a common situation where the charger is not plugged in properly due to carelessness on the part of the phone user. The solution is simple, it is to switch sockets back and forth. 4. There is a problem with the mobile phone battery.

Generally speaking, it is rare to have problems with your phone's battery. But once there is a problem, it is a big problem and must be taken seriously. Therefore, when it is found that the charger and mobile phone system are not faulty, you should focus on checking the battery.

If you find that the battery is swollen, then it means that there is a problem with the battery and you must stop using it immediately. Do not disassemble the battery indiscriminately. Because a swollen battery can easily cause **, bringing serious consequences.

Questions. The display is fully charged, and the charger will be turned off after unplugging.

It means that the capacity of your phone's motor pool has dropped significantly, and the battery needs to be replaced because it is no longer usable. The battery is broken.

It shows that the battery life has been seriously insufficient, resulting in a serious battery loss, and the original battery needs to be replaced after sale.

This happens because the user performs the following wrong action:

1.Users often operate their phones while they are charging;

2.Use a non-original data cable for charging;

3.Charge only when the power is empty for a long time;

4.Charge with a power bank frequently.

According to the above reasons, the user should eliminate them one by one and solve them one by one, so as not to cause fatal damage to the battery again.

2. If the charger is in poor contact with the mobile phone, you only need to reinsert the charger plug into the mobile phone or replace the data cable.

3. There is a problem with the phone's battery. This rarely happens, but if the phone can't be charged, you should focus on checking the battery, if you find that the battery is swollen, then it means that there is a problem with the battery and the battery needs to be replaced.

The first, the battery reason. It may be that it has been used for too long and has been aged, or it has not been worn out for a long time. Second, there is a problem with the charging circuit of the mobile phone or there is a problem with the system.

There is a possibility of a phone charger model.

No, it is possible that the battery will last for a long time.

It's not durable, if it's still there.

Find after-sales solutions during the warranty period.

The first reason is that the battery is faulty and needs to be replaced. Second, the charger is faulty.

1.Check whether your phone has Smart Peak Capacity or Smart Charging turned on.

2.Check for battery loss.

3.Try to standardize the use:

1) The altitude does not exceed 2000 meters;

Charger. (2) The temperature of the surrounding medium is not higher than +40 and not lower than 10;

3) The relative humidity of the air is not more than 85% (when the medium temperature is 20 5);

4) Where there is no conductive dust;

5) No hazardous environment;

6) An environment that does not contain gases and vapors that can corrode metals and insulation;

7) In a place where there is no rain or snow;

8) In a place where the vertical plane is inclined not more than 5 degrees and there is no violent vibration and impact.

4.Check whether the charger is virtually connected, whether the power supply is turned on, or try to change the charging cable or socket. If it doesn't work, go to a service store for testing.

Expansion: There are many chargers, such as lead-acid battery chargers, VRLA battery testing and monitoring, nickel-cadmium battery chargers, nickel-metal hydride battery chargers, lithium-ion battery chargers, portable electronic equipment lithium-ion battery chargers, lithium-ion battery protection circuit chargers, electric vehicle battery chargers, car chargers, etc.

Battery charger: It is specially designed for charging lead-acid maintenance-free batteries or battery packs widely used in the market, and the whole machine is small in size, light in weight and easy to move.

That is, it should be charged frequently, and the electricity charged in the electric board has become virtual electricity, and it cannot be waited.

1. Charging tips: Some automated smart fast chargers only indicate that they are 90% full when the indicator light changes. The charger will automatically change to fully charge the battery with slow charging. It is best to use it after the battery is fully charged, otherwise it will shorten the use time.

2. Before charging, the lithium battery does not need to be discharged, and improper discharge will damage the battery. When charging, try to charge slowly and reduce the fast charging mode; Do not exceed 24 hours. After three to five full charge-discharge cycles, the chemicals inside the battery are all "activated" for optimal use.

3. Please use the charger of the original factory or a brand with a good reputation, and use a special charger for lithium battery for lithium battery, and follow the instructions, otherwise the battery will be damaged and even dangerous.

4. There are many users who often turn on the mobile phone when charging, in fact, it will be easy to hurt the life of the mobile phone, because in the process of charging, the circuit board of the mobile phone will heat up, and if there is an external ** at this time, it may produce instantaneous reflow current, causing damage to the internal parts of the mobile phone.

、About the aboveWhy does the mobile phone clearly show that it is charging, but it is still not fully charged? To this question, for example,In the case that the original charger, the original charging cable, the mobile phone charging tail plug, the regret and the mobile phone battery are normalThis problem arisesIt is possible that the power control circuit on the motherboard is chargedThere was a hardware failure,(This is true under the condition that all of the above are normal).

The phone clearly shows that it is charging, but it is still not charged, because the time has not yet arrived, or it is not charged at all, or the battery is damaged.

It is possible that the mobile phone charging interface has a problem with the contact of the interface due to the accumulation of dust during daily use, resulting in the phenomenon of not being charged, which can be solved by the following steps:

1. Wrap the toothpick with a small section of double-sided tape, but do not wrap it too thick, too thick will cause it to be difficult to enter the mobile phone charging interface and affect the cleaning effect of tung infiltration.

2. Use a toothpick wrapped in double-sided tape to clean the charging port of the mobile phone, pay attention to the corners, and try to clean the charging interface of the mobile phone. However, it is also important to pay attention to the force, because the charging port of the mobile phone is relatively fragile, so if you use too much force, it may cause damage.

3. After basically wiping all the corners of the mobile phone charging interface, you can stop cleaning. It can be found that there is a lot of black dust stuck to the toothpick taken out, and the cleaning effect is not small.

4. Connect the mobile phone to the charger, and the problem that it is charging and the power is rising, and it cannot be charged.