127I-Modell - 11/12 - Ausgabe 09/11 - 2096165 - BUE-0056-05EN
Electrical system
8
Battery voltage
(values during
operation)
Mobile operation
(vehicle moving,
no 230 V con-
nection)
Battery opera-
tion
(vehicle station-
ary, no 230 V
connection)
Power operation
(vehicle station-
ary, 230 V con-
nection)
Danger of total
discharge (battery
alarm)
11 V or less
1)
1)
The battery guard switches all the appliances off (at 10.5 V).
12 V power sup-
ply overload
If appliances are
switched off: Bat-
tery flat
If appliances are
switched on: Bat-
tery overload
12 V power sup-
ply overload
The battery is not
charged by the al-
ternator, the alter-
nator's regulator
is defective
The battery is not
charged by the
transformer/rectifi-
er, the transform-
er/rectifier is
defective
11.5 V to 13 V 12 V power sup-
ply overload
2)
2)
If the voltage does not exceed this range for several hours.
Normal range 12 V power sup-
ply overload
2)
The battery is not
charged by the al-
ternator, the alter-
nator's regulator
is defective
The battery is not
charged by the
transformer/rectifi-
er, the transform-
er/rectifier is
defective
Over 13.5 V Battery is being
charged (main
charge)
Occurs only brief-
ly after charging
Battery is being
charged (main
charge)
Values for off-load voltage Charging condition of the battery
Less than 11 V Totally discharged
12.0 V 0 % (discharged)
12.2 V 25 %
12.3 V 50 %
12.5 V 75 %
More than 12.8 V Full
Z Total discharge causes irreparable damage to the battery.
Z Measure the off-load voltage preferably several hours after the previous
charging (e.g. in the morning) and not directly after a current drain.
Ampere indicator (blue)
1 LED 2 LEDs 3 LEDs 4 LEDs 5 LEDs 2 LEDs 3 LEDs 4 LEDs
Discharging with: Charging with:
Ap-
prox.
0A
> 1 A > 3 A > 10 A > 30 A > 1 A > 3 A > 10 A
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