Totally Discharged Batteries - Volkswagen Jetta 2005 Workshop Manual

The battery charger starts with support mode.
– Exchange battery ⇒ page 31
– Press
START / STOP
– Disconnect black terminal clamp "-" of charger unit from neg‐
ative terminal of vehicle.
– Disconnect red terminal clamp "+" of charger unit from positive
terminal of vehicle.
– Pull charger unit plug out power supply socket.
3.2.6 Charging battery in maintenance mode
with battery charger -VAS 5900-
WARNING
Danger of injury! Observe warning notices and safety regula‐
tions ⇒ page 2 !
When the battery is fully charged the battery charger -VAS 5900-
switches to maintenance mode.
– Proceed as for charging battery
At a charge condition of 100 % all bars appear in display.
Note
When a battery is being charged in the buffer mode and a
♦
consumer draws current from the battery, the battery charger
-VAS 5900- automatically compensates the charge.
The maintenance mode can be continued for an unlimited pe‐
♦
riod.
The battery is always ready for use.
♦
Observe battery manufacture's maintenance instructions!
♦
3.3

Totally discharged batteries

WARNING
Danger of injury! Observe warning notices and safety regula‐
tions ⇒ page 2 !
A battery is designated "totally discharged" when the "no load"
voltage is less than 12.2 V.
Caution
♦ Totally discharged batteries freeze prematurely.
♦ Frozen batteries should no longer be used.
.
. The support mode is terminated.
⇒ page 19 .
Jetta 2005 ➤ , Bora 2006 ➤
Electrical System - Edition 05.2005
3. Charging battery
27