Mercedes-Benz GLA Series Operator's Manual page 255

Comply with safety notes and take protective
measures when handling batteries.
Risk of explosion.
Fire, open flames and smoking are
prohibited when handling the battery.
Avoid creating sparks.
Electrolyte or battery acid is corro‐
sive. Avoid contact with the skin, eyes
or clothing. Wear suitable protective
clothing, in particular gloves, an
apron and a face mask. Immediately
rinse electrolyte or acid splashes off
with clean water. Consult a doctor if
necessary.
Wear safety glasses.
Keep children away.
Observe this Operator's Manual.
If you do not intend to use the vehicle over an
extended period of time:
activate standby mode, or
R
connect the battery to a battery charger
R
approved by Mercedes-Benz, or
consult a qualified specialist workshop to
R
disconnect the battery
Notes on starting assistance and charging
the 12 V battery
When charging the battery and during starting
assistance, always use the jump-start connec‐
tion point in the engine compartment.
Breakdown assistance 253
* NOTE Damage to the battery from over‐
voltage
When charging using a battery charger with‐
out a maximum charging voltage, the battery
or the on-board electronics may be damaged.
Only use battery chargers with a maxi‐
#
mum charging voltage of 14.8 V.
& WARNING Risk of explosion from hydro‐
gen gas igniting
There is a danger of hydrogen gas igniting
when charging the battery if there is a short
circuit or sparks start to form.
Make sure that the positive terminal of
#
the connected battery does not come
into contact with vehicle parts.
Never place metal objects or tools on a
#
battery.
The described order of the battery
#
clamps must be observed when con‐
necting and disconnecting the battery.