LG TONE Style TONE-NP3C Owner's Manual page 15

Make sure that foreign objects do not enter the charger's connectors
(charging port and power plug). Foreign objects in the charger's
connectors may result in fire or electric shock.
If you have a medical device implanted, contact your doctor before
using this device.
For your safety, do not remove the battery incorporated in the product.
This product has a built-in battery, and the battery cannot be removed
or replaced.
If you arbitrarily replace the battery or don't replace it correctly, it may
explode.
The lithium-ion polymer battery is a hazardous component that can
cause injury.
Battery replacement by an unqualified professional can cause damage
to your device.
Do not discard the battery arbitrarily. Follow the local procedure for
discarding batteries.
In order to prevent unnecessary energy consumption, disconnect the
device when fully charged. Always use an easily accessible power outlet
for charging your device.
Risk of fire or explosion if the battery is replaced by an incorrect type.
Do not store or transport at pressures lower than 0.116 bar (11.6 kPa)
and at above 9.32 miles (15,000 m) altitude.
Replacement of a battery with an incorrect type that can defeat a
safeguard (for example, in the case of some lithium battery types).
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