Honda 2002 CR-V Owner's Manual page 274

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Battery
If the terminals are severely cor-
roded, clean them with baking soda
and water. Then use a wrench to
loosen and remove the cables from
the terminals. Always disconnect the
negative ( ) cable first and recon-
nect it last. Clean the battery termi-
nals with a terminal cleaning tool or
wire brush. Reconnect and tighten
the cables, then coat the terminals
with grease.
270
Maintenance
If you need to connect the battery to
a charger, disconnect both cables to
prevent damage to the vehicle's
electrical system.
The battery gives off explosive
hydrogen gas during normal
operation.
A spark or flame can cause the
battery to explode with enough
force to kill or seriously hurt you.
Wear protective clothing and a
face shield, or have a skilled
mechanic do the battery
maintenance.
Charging the battery with the cables
connected can seriously damage your
vehicle's electronic controls. Detach
the battery cables bef ore connecting
the battery to a charger.
If your vehicle's battery is
disconnected or goes dead, the audio
system will disable itself. The next
time you turn on the radio you will
see '' '' in the frequency
display. Use the Preset buttons to
enter the five-digit code (see page
178 ). You will then have to set the
clock and enter your station presets.