Ford Falcon (FG) 2010 Manual page 165

Vehicle battery
WARNINGS
Batteries emit an explosive gas
mixture which can be ignited by
spark or flame. Keep sparks and flames
away from the battery at all times.
Never smoke near a battery.
Batteries contain sulphuric acid. If
acid contacts eyes, skin or
clothing, flush immediately with
large amounts of water. In the case of
eye contact, see a doctor immediately.
Take care with all metal objects
including tools, items you
are wearing (jewellery, rings, metal
watchbands, etc.) near battery terminals.
Metal objects touching battery terminals
can cause serious burns to the user or
wearer.
CAUTION
Switch the ignition key off and
ensure all accessories are off
before disconnecting battery terminals.
Damage to electrical components may
result if switched on when the battery
is disconnected, or if vehicles with flat
batteries are connected to boost starting
batteries while the ignition is switched
on.
Maintenance
Electric welding
Electric welding on the vehicle can
cause damage to electrical
components. Ensure the negative
battery connection is removed from the
battery terminal before commencing
an electrical welding process. Do not
weld in close proximity to electronic
components or materials that may be
damaged by heat or are inflammable.
Installation of auxiliary
equipment
To avoid any damage to the
vehicle, check with an
Authorised Ford Dealer to ensure
correct installation of auxiliary equipment.
Fitment of some non-Ford/Motorcraft
accessories (such as alarms and other
electronically controlled devices) may
affect normal vehicle operation due to
electromagnetic interference emitted by
these accessories.
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CAUTION
CAUTION