Are the batteries used by OPPO Mobile Phones Safe?

The OPPO batteries are safe. It has been designed to protect the battery from over-charged, over-drained and short circuits. When the battery is full, it will automatically stop charging. When the battery is below a certain value, the phone will automatically be in a shutdown state to avoid continued discharge. Also, the battery is designed to detect temperature. When the battery temperature reaches a certain value, this will also stop charging the battery. In any case that other factors cause the battery to be destroyed and/or external liquid enters the battery, we strongly advise that you stop using your phone and do not attempt to fix it yourself. Immediately visit the service center to have the battery replaced.