There are several possible causes for Huawei P40 to stop charging after charging to 80%. The following are recommended troubleshooting steps and possible causes:
Software fault: First, try to restart the phone. Sometimes a software fault may cause abnormal charging.
Charging Settings: Check your phone's battery Settings to see if there are any Settings that limit charging. Some phones may have a charge limit to protect the battery.
Charger and data cable: Use the original charger and data cable for charging. Non-original chargers or cables may cause charging problems.
Charging port problem: Check the charging port of the phone for dust or debris, which may affect the charging effect. If there is a problem, it is recommended to use a cleaning tool to clean up.
Battery health: If the battery is aging or faulty, it may cause abnormal charging. In this case, the battery may need to be replaced.
Charging protection mechanism: In order to protect the battery, the phone may set a charging upper limit, especially when the battery temperature is high. Make sure your phone doesn't charge in hot environments.
Software Update: Check whether the phone has the latest system update. Sometimes, software updates can fix known problems.
Hardware problem: If none of the above methods can solve the problem, then the phone hardware may be faulty. In this case, contact Huawei after-sales service center for check and repair.
Hope the above suggestions can help you. If the problem persists, you are advised to contact professional mobile phone maintenance technicians or Huawei official customer service personnel.
1. You can't fill it up to 80.
2. Because Huawei mobile phones use lithium batteries, lithium batteries have a certain charging protection mechanism.
When the battery power of the mobile phone reaches a certain level (such as about 80%), in order to protect the battery life and safety, the mobile phone will stop charging to avoid battery damage caused by overcharging.
3. This is to protect the health of the mobile phone battery and extend the service life of the battery.
Overcharging can cause problems such as battery heating and capacity loss, affecting the use experience and battery life of the phone.
Therefore, Huawei phones stop charging after charging to a certain extent, in order to protect the health of the battery, so that users can use the phone for longer.