V Socket - Mercedes-Benz Marco Polo 2017 Owner's Manual Supplement

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Electrical system
62
12 V sockets
Socket
:
12 V sockets are located:
in the centre console above the central con-
R
trol panel display
in the right-side trim at the rear
R
in the right-side trim beside the load com-
R
partment door
You can use a power socket for 12 V accessories
up to a maximum of 120 W. The socket only
functions when the ignition is on.
i
When the ignition is on, but the engine is not
running (switch position 2), consumers may
excessively discharge the starter battery and
the engine may no longer start.
Additional battery
Important safety notes
Only have the additional battery replaced
!
with an AGM battery of the same type. Other
batteries are not suitable for charging using
the charger.
Work carried out incorrectly or modifications
made to the electrical system could affect
operational safety.
The additional battery is located in the seat base
of the driver's seat (see vehicle Operating
Instructions).
!
Always ensure that auxiliary battery is
recharged at least every four weeks.
The auxiliary battery can become irreparably
damaged in the event of heavy discharging
over a period of time of more than 8 weeks.
The additional battery is maintenance-free. If
the battery is fully charged and no consumer is
connected, the battery is protected against
exhaustive discharge for four weeks.
Extended periods of disuse without recharg-
i
ing limit the battery's capacity. Note that cer-
tain devices have undervoltage protection or
are respectively switched off consecutively by
the central control panel.
Charge level display
The central control panel display
The central control panel display shows the cur-
rent battery voltage and the charge status of the
additional battery.
Function
Battery voltage
:
# Battery operation
;
Charge status bar graph
=
If you turn on a consumer and there is a current
of at least 0.5 A, charge status = of the addi-
tional battery is called up. One bar represents
10%.
If only the first and last bars are shown, the
charge status cannot be determined. This hap-
pens after charging or after a very minimal work-
ing load for the battery (lower than 0.5 A).
Sleep mode
If the battery voltage drops below 10.5 V, the
central control panel switches off the following
consumers in this order (sleep mode):
Coolbox
R
Auxiliary heating
R
Pop-up roof
R
Sensors (level sensors, outside temperature
R
sensor)
This shutdown process prevents the additional
battery from being drained further.

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