Removing And Fitting Batteries; Battery Box; Arrangement Of The Batteries - Mercedes-Benz Actros Operating Instructions Manual

330 Maintenance and care
consumers that are switched on and the
duration used.
The given rated capacity of the battery may
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be higher than the actual battery capacity.
The battery capacity depends on the follow‐
ing factors:
the age of the battery
-
the outside temperature
-
the engine speed
-
Regardless of the power of the alternator, the
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battery can only be charged a certain amount
per hour. The rate of charge is significantly
reduced by low outside temperatures. As a
result, it can take significantly longer to
charge the battery in winter.
Please note that the alternator cannot fully
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charge the batteries.
If the battery is used intensively when the
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vehicle is stationary, e.g. spending the night
in the vehicle, recharging the battery may be
required after several days. Example:
If the refrigerator box consumes approx‐
imately 1 A per hour and remains switched on
over a weekend, this results in an overall con‐
sumption of approximately 60 Ah.
Ideally recharge the batteries regularly with
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an external charger, at least once per month.
To ensure the vehicle's starting ability,
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observe the notes and instructions in the fol‐
lowing event windows:
Energy-saving mode active
-
Battery charge level too low Start engine.
-
Observe the following notes to minimise power
consumption:
Electrical stationary air conditioning system:
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the system is designed to keep an already
cooled cab at the right temperature. The set
specified temperature should be appropriate
to the outside temperature.
The refrigerator is not impacted by the
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energy-saving mode. It always stays switched
on to preserve perishable goods. Its electrical
consumption is minimal, but not negligible.
Devices such as coffee makers, microwave
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ovens and kettles have an extremely high
electrical consumption for their usually brief
length of time in use.
Ideally charge mobile phones and notebooks
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whilst driving and not when stationary.
Completely disconnect the TV unit and
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receiver from the on-board electrical system
when these are not in use. These devices
consume electricity even when switched off
(standby mode).
Completely disconnect the voltage converter
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from the on-board electrical system when it is
not in use. The quiescent current of these
devices can be very high due to poor effi‐
ciency.
If you park up your vehicle for longer than three
weeks, observe the notes on parking up the vehi‐
cle ( page 336).
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When storing batteries, comply with all safety
regulations, such as operating instructions, regu‐
lations concerning hazardous materials, environ‐
mental protection measures, work safety and
accident prevention regulations.
Observe the instructions on care and mainte‐
nance of the battery ( page 333).
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Removing and fitting batteries

Battery box

To remove: open catch
#
tery box cover 1 upwards.
To replace: replace battery box cover 1.
#
Attach catch 2 and close.
#

Arrangement of the batteries

The location of the batteries may vary depending
on the vehicle version. The batteries may be fit‐
ted one beside the other or one on top of the
other in the rear area between the longitudinal
members of the chassis frame or on the side on
the chassis.
2 and remove bat‐