i
The interior lighting and USB ports continue
to function. If you use them, the battery volt-
age will decrease further.
If the battery voltage was lower than 10.5 V, the
additional battery must be charged to at least
12.5 V.
X
To cancel sleep mode: press the control
knob.
Charging the additional battery
Charge the additional battery at regular inter-
vals. In this way its capacity is retained.
X
Take the vehicle on a long journey.
The engine alternator charges the vehicle
starter battery and the additional battery.
Even on a long journey, the charging current
may not be sufficient to charge the additional
battery fully. In this case, charge the additional
battery using the battery charger:
X
Connect to a 230 V power supply
(
Y
page 64).
X
Switch on the residual current circuit breaker
(
Y
page 64).
The additional battery is charged by the
charger (
Y
page 65). The bars flash one
after the other during the charging process.
i
Maximum charge current: 15 A
If the display remains unchanged, check the
fuse of the charge cable (
Y
page 67).
230 V power supply
Important safety notes
G
DANGER
There is high voltage in the 230 V power
socket if:
R
the 230 V power supply is being established
R
the residual current circuit breaker is
switched on
If you or another person, particularly a child,
reach into the power socket, you could
receive an electric shock. There is a risk of
fatal injuries.
Do not reach into the power socket and keep
children away from it. After connecting to the
230 V power supply, make sure that the resid-
ual current circuit breaker is functioning cor-
rectly.
The 230 V power supply provides the following
components with current:
R
230 V socket (
Y
page 64)
R
Battery charger (
Y
page 65)
R
USB ports (
Y
page 66)
You will find notes about what to do in the event
of a thunderstorm in the "Safety" section
(
Y
page 14).
Electrical system
63
Water, gas, electr., Marco Polo
Z
