LG K4 User Manual page 101

Safety Information
Read these simple guidelines. Breaking the rules may be dangerous or illegal.
Further detailed information is given in this user guide.
Never use an unapproved battery since this could damage the phone and/or
battery and could cause the battery to explode.
Never place your phone in a microwave oven as it will cause the battery to
explode.
Your phone contains an internal battery. Do not dispose of your battery by fire
or with hazardous or flammable materials.
Make sure that no sharpedged items come into contact with the battery. There
is a risk of this causing a fire.
Be careful that children do not swallow any parts such as rubber plugs
(earphone, connection parts of the phone, etc.). This could cause asphyxiation
or suffocation.
Unplug the power cord and charger during lightning storms to avoid electric
shock or fire.
to the air bag. If wireless equipment is improperly installed and the air bag is
activated, you may be seriously injured.
Do not use the phone in areas where its use is prohibited. (For example: aircraft).
Do not expose the battery charger or adapter to direct sunlight or use it in
places with high humidity, such as a bathroom.
Do not use harsh chemicals (such as alcohol, benzene, thinners, etc.) or
detergents to clean your phone. There is a risk of this causing a fire.
internal circuit boards of the phone.
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