Audi A8 2008 Owner's Manual page 323

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Checking
and filling
Ill
-------------~~~
&
WARNING (continued )
When disconnecting the battery, first disconnect the negative
cable and then the positive cable.
Before reconnecting the battery, make sure all electrical
consumers are switched off. Reconnect the positive cable first and
then the negative cable . Never interchange the cables - this could
start a fire!
Never charge a frozen or a thawed-out battery . It could
explode! If a battery has frozen, then it must be replaced . A
discharged battery can freeze over at 32 °F (0 °CI.
Make sure the vent hose is always attached to the opening on
the side of the battery.
Never use batteries which are damaged. There is the danger of
an explosion
I
Always replace a damaged battery .
&
WARNING
California Proposition 65 Warning :
Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive problems . Wash hands after
handling.
0
Note
Do not disconnect the vehicle battery when the ignition is
switched on or when the engine is running, otherwise, you will
damage electronic components in the electrical system.
If your vehicle is going to stand for a long period of time without
being driven, protect the battery from "freezing", otherwise it will
be damaged and will then have to be replaced . •
Battery
charging
Starting the engine requires a well charged battery.
Always read and heed all WARNINGS below ~ &
and ~ &
in "Working on the battery" on page 319.
- Turn off the ignition and all electrical consumers.
-
Make sure the area is well ventilated when you charge
the battery.
- Attach the red (pos itive
8)
clamp of the charging equip-
ment to the positive termina l of the battery and the black
(negative(:)) clamp to the jumper terminal.
- Only now plug the mains lead for the charging equip-
ment into the wall outlet and turn it on~
& .
-
Make sure the charging rate is not over 30 amps/14.8
Volt.
- When the battery is fully charged: Turn the charging
equipment off and remove the mains lead from the wall
outlet.
-
Now remove the clamps fo r the charging equ ipm ent .
A discharged battery can freeze at temperatures of only O °C. Allow
a frozen battery to thaw completely before attempting
to charge it
=>
,&..
However, we recommend not using a thawed battery again
because the battery casing can be cracked due to ice formation and
can leak battery acid.
Battery
charging
(Maximum
charging
rate of
30
amps/14.8
Volt)
When charging at low voltages (e.g . with a trickle charger ), the
battery cab les do not have to be disconnected first . The battery caps
should
not
be opened when charging a battery.
~
Vehicle care

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