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Battery charging (Maximum charging rate
of 30 amps/ 14 .8 volt s)
When charging at low voltages (e.g . with a
trickle charger), the batte ry cables do not
have t o be d isconnected first. The battery
caps should not be opened when charging a
battery .
It is not necessary to remove the battery from
the luggage compartment,
and it is also not
necessary to disconnect the cables.
Fast charging th e battery (charging rate
above 14 .8 volt s)
For technical reasons do not use a battery
charger that uses voltage greater than 14.8
volts to charge your ve hicle 's battery .
A
WARNING
Charging a battery can be dangerous .
- Always follow the operating instructions
provided by the battery charge r manu-
fact urer when charging your battery .
- Never charge a frozen battery . It may ex-
plode because of gas t rapped in the ice.
Allow a frozen battery to thaw out first.
- Do not reuse batteries which we re fro -
zen . The batte ry housing may have
cracked and weakened whe n the battery
froze.
- Charge the battery in a we ll ventilated
area. Keep away from open flame o r ele c-
trical spark. Do not smoke. Hydroge n gas
generated by the battery is exp losive.
- To redu ce the danger of explosion , never
conne ct or disconnect cha rger cables
wh ile the charger is operating .
- Fast charg ing a battery is dangerous and
sho uld on ly be attempted
by a compe-
tent technician with the proper eq uip-
me nt.
- Battery acid that may spill during charg -
ing should be washed off with a so lution
of warm water and ba king soda to neu-
tralize the acid.
Checking
and Fillin g
223
@
Note
Never use a fast charger as a booster to
start the eng ine . This will seriously dam-
age sens itive e lectronic components, such
as contro l units, relays, radio, etc., as well
as the batte ry charger .
Battery replacement
The new ba ttery mus t hove the some specifi-
cations and dimensions as the original equip-
ment battery .
Intelligent energy management
in your vehi-
cle is responsible for distributing t he electri-
ca l ene rgy throughout your vehicle
~
page 190 . The intelligent energy manage-
ment system will keep the engine battery
charged better t han vehicles without this sys-
tem. To make sure t he addition a l ele ctri cal e n-
ergy is ava ilab le once again after you have
changed the batte ry, we recommend that you
insta ll batteries of the same type an d manu-
facture on ly (the same as those insta lled at
the time your veh icle was delivered) . Specif i-
cations are listed on the battery housing. Your
authorized dea ler must code the battery in
the ene rgy management
system to enab le you
to use the ene rgy management functions cor-
rect ly afte r repla cing t he battery.
The new battery must have the same capacity,
voltage (12-volts) , amperage, construction
and plug sea ling .
When install ing the battery, make sure the ig-
nition and a ll electrical consumers are switch -
ed off .
~
Note
Make sure the ventilat ion hose on the side
of the battery is con nected, otherwise
fumes or batte ry acid can lea k out.
@)
For the sake of the environment
Because of the prob lem of proper disposal
of a battery, we recommend your author -
ized Audi dealer change the battery for
you. Batteries contain sulfur ic acid and
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