SMART FORTWO CABRIO Operating Instructions Manual page 260

Battery
Charging the battery
Danger of injury!
Danger of explosion!
When charging the battery, deflagra
tions can occur due to gases escaping
from the battery. Avoid creating
sparks. Keep naked flames away from
the battery and do not smoke.
Do not touch the battery terminal with
metal objects and do not remove the
battery charger's terminal clamps un
til the battery charger has been
switched off and no further gas is being
discharged by the batteries.
Only charge the battery in a well venti
lated area.
There is a risk of acid burns during the
charging procedure due to the gases
which escape from the battery. Do not
lean over the battery when it is being
charged.
258 Communications breakdown
Danger of injury!
Never attempt to charge the in
stalled battery. As the battery is being
charged, gases can escape and generate
minor explosions, which may injure you
and other persons or cause damage to
the paintwork or acid corrosion on the
vehicle.
Only use chargers of a correct or suit
able voltage.
Never attempt to recharge a frozen
battery. Have the battery checked by a
qualified specialist workshop, e.g. a
smart center. The housing could be
damaged.
>Note!
Disconnect the battery for rapid charging
prior to using the charger.