Mercedes-Benz 2011 GLK-Class Operator's Manual page 257

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Charge the battery in accordance with the
separate instructions for the accessory
battery charger.
G
Warning!
There is a risk of acid burns during the
charging process due to the gases which
escape from the battery. Do not lean over the
battery during the charging process.
G
Warning!
Battery acid is caustic. Avoid contact with the
skin, eyes or clothing.
!
Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while still installed.
! Only use battery chargers with a
maximum charging voltage of 14.8 V.
! Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment (
X
Y
Open the hood ( page 232).
X
Connect the battery charger to the positive
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
( Y page 256).
Y page 256).
Battery
255
Z