Phone charging slowly is a common issue that occurs when using it for a period of time, continuously plugging in the charger while the battery percentage remains low. This article will answer your questions about this issue and how to fix slow charging.
Why is the phone charging slowly?
Unstable power source
Many people use the USB port on their computer to charge the phone. However, in reality, the power supply from this USB port is very small, causing the charging process to be slower. Even with USB 3.0 ports, the current output only reaches a maximum of 0.9 A. Worse still, when plugged into a USB 2.0 port, the power output only reaches 0.5 A, which is too low compared to the specifications.
Charger issues
This reason stems from when you plug the charger into an unstable power outlet or accidentally touch the charger, causing the contact with the power outlet to be loose and prolong the charging time of the phone, or the electronic circuit in the charger has been damaged before. This leads to insufficient power supply for the mobile phone.
Depleted or damaged battery
When you use your mobile phone for a long time with frequent charging throughout the day, it can cause the battery to become swollen, bulged, or unable to hold a charge, resulting in slower charging
Why is the phone charging slow? (Illustration)
Dirty charging port
During the use of the phone, it is inevitable that the charging pins and the charging port of the phone will get dirty, causing the cable to not fully transmit the current to the phone.
Malfunctioning charging port
A faulty micro USB charging port prolongs your charging time as the phone does not have a stable power connection to receive charge.
Corroded charging port
Over time, the charging port on different phones may experience corrosion between the contact pins with the micro USB cable, leading to prolonged charging time.
Faulty charging cable
The charging cable is designed to be thin and easily bent, broken, or damaged in any case. Especially, the micro USB cable is one of the accessories that is most prone to damage during use. Once the cable is damaged, it will cause the phone to lose a stable power transmission, resulting in weak charging.
How to fix slow charging or unable to charge
Check the USB port
The USB port may be defective during production or during regular charging, causing the port to be damaged. This leads to poor contact between the USB cable and the metal surface inside the USB port, hindering the charging process.
Check the cable
The cable and charger are a matching pair that helps the phone make contact with the power source. To determine if the charger or cable is faulty, try using the cable with a different charger. If your phone still doesn’t charge with two different chargers, the issue lies with the cable. At this point, you should replace the charging cable.
Replace the battery
If the phone battery is deformed, swollen, or leaking, it typically experiences a significant drop in battery life, indicating that it has reached the end of its service life.
Replace the power outlet
If the power outlet does not provide enough power, it will cause slow charging for your phone. Therefore, you should check if the power outlet is damaged, and if so, replace it with a new one.
Disable some features on the phone while charging
If you charge your phone when it is displaying 100% brightness or browsing the web on 4G, it will take longer to charge. If you turn off the screen and disconnect Wi-Fi or 4G when your phone is charging, as well as switch your phone to airplane mode or turn it off completely while charging, it will help the device charge as quickly as possible.
Check the charger
Similar to testing with the cable, try using the charger with a different cable. If the charging time still doesn’t increase, it’s time to buy a new charger.
Clean the phone
The phone getting dirty from the surrounding environment can be a cause for the phone’s charging port not recognizing the charger or causing the charging process to slow down. Therefore, you should try cleaning the dirt on the phone, then plug it in again to see the result.
Check the phone’s software version
Updating the phone’s software version can potentially decrease battery life. Specifically, if the phone has outdated specifications, it will not be able to receive the latest versions. Therefore, if after updating to a new version you notice that the phone is charging slowly or not charging, you should revert to the previous version.
These are the causes and remedies for slow phone charging, so refer to them and follow them to keep your device in the best condition. Good luck!
According to VTC
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