Oppo A54 5G Notes On Usage page 16

Use with the specified power supply and voltage.
When charging the battery overseas, use an AC
adapter for global use (sold separately).
Do
Using the incorrect power supply and voltage may cause
fire, burns, electric shock, etc.
AC adapter (sold separately): 100V AC (Connect to the AC
outlet for internal household use)
AC adapter for global use (sold separately): 100V -240 V
AC (Connect to the AC outlet for internal household use)
Clean dust from the power plug.
Using it with dust adhered may cause fire, burns, electric
shock, etc.
Do
Firmly plug the specified charging equipment (sold
separately) to a power outlet.
Insecure inserting may cause fire, burns, electric shock, etc.
Do
When unplugging a power plug of the specified
charging equipment (sold separately) from a power
outlet, disconnect it with holding the adapter unit. Do
Do
not apply force by pulling the cord, etc.
Pulling a cord of the specified charging equipment (sold
separately) may damage the cord causing fire, burns,
electric shock, etc.
When plugging/unplugging the specified charging
equipment (sold separately) into/from the product,
plug/unplug it straight toward the product without
Do
applying force by pulling the cord, etc.
Incorrect plugging/unplugging may cause fire, burns, injury,
electric shock, etc.
If the charging jack is deformed such as being
bent, stop using immediately. Do not use it with the
deformation restored.
Do
May cause fire, burns, injury, etc. due to short-circuit of the
charging jack.
Always get a power plug disconnected from a power
outlet when it is not used.
Keeping a power plug connected may cause fire, burns,
Unplug
electric shock, etc.
Immediately disconnect a power plug from a power
outlet if liquid such as water (drinking water, sweat,
seawater, urine of pet animals, etc.) is on it.
Unplug
Failure to do so may cause fire, burns, electric shock, etc.
due to short-circuit from the adhered object etc.
14
Safety Precautions