LG TONE Free Owner's Manual page 7

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 11.6 kPa (0.116 bar)
and at above 15,000 m (9.32 miles) altitude.
Replacement of a battery with an incorrect type that can defeat a
safeguard (for example, in the case of some lithium battery types).
Disposal of a battery into fire or a hot oven, or mechanically crushing or
cutting of a battery, that can result in an explosion.
Leaving a battery in an extremely high temperature surrounding
environment that can result in an explosion or the leakage of flammable
liquid or gas.
A battery subjected to extremely low air pressure that may result in an
explosion or the leakage of flammable liquid or gas.
Do not carelessly throw away old batteries. It can cause an explosion or
fire. The disposal method may vary by country and region. Dispose of it in
an appropriate manner.
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