If the phone cannot be fully charged, it is recommended to:
1. Check whether the original charger is used. If not, please replace the original charger and try again.
2. Replace another power socket.
3. If the battery supports removal, reinstall the battery or replace it with another original battery and charge it again.
4. Update the mobile system version: Settings - About the phone (about the device) - manual download update\/automatic download update (software update\/system update - update). Note: Back up the data on the device before the upgrade.
If the above operation is invalid, please bring the purchase invoice, repair card and machine to the nearest service center for inspection.
The phone is automatically disconnected when it is charged to 70%, which may be the phone charger. There is an anomaly or there is a problem with the battery of the phone and it cannot be fully charged.
It may also be that the charge of a software is not satisfied. You can clean up the junk files, switch the machine on and off again, and if you can't, you can get the after-sales service to check and see where the problem is for maintenance
This is what you do in the Settings to protect the battery Settings, in the Settings can be turned off