06/2011 B400Page 110
Operation
The battery charger is designed for maintenance-free and
low-maintenance batteries. The charger can operate along
two characteristic curves to charge the respective batteries.
The power wheelchair is delivered with the appropriate
characteristic curve, set in accordance with the kind of bat-
tery the wheelchair is equipped with. If the battery charger is
to be used with another power wheelchair or if a new bat-
tery is installed, the characteristic curve must be checked.
NOTICE
Risk of batterydamage. Setting the characteristic
curve incorrectly can result in permanent damage to the bat-
tery.
When handling the battery charger, the following safety in-
structions must be observed: Failure to observe the instruc-
tions can affect the function of the battery charger:
n Always place the rubber feet of the battery charger on a
level surface.
n Protect the battery charger from direct sunlight to prevent
the charger from getting any warmer than it already is.
n The location where the battery charger is installed must
be dry and well ventilated. Avoid letting dust and dirt
enter the battery charger.
n To clean the charger, use a dry cloth.
To charge the batteries, proceed as follows:
1. Turn off the control on the power wheelchair.
2. Connect the plug of the battery charger to the charging
receptacle on the control panel of the power wheelchair
(see section 6.3.1, g. 14).
3. Connect the battery charger to a wall outlet and turn it
on. The batteries will start charging automatically, and
the current charge status is indicated on the LEDs of the
battery charger (see Table 5).
4. When the charging process is complete, turn off the bat-
tery charger: Disconnect the battery charger from the
mains supply, then from power wheelchair.
5. Turn on the controls. The wheelchair is ready for driving.
The following statuses are indicated by the battery charger:
Indication Function
Yellow LED is lit Battery is charging
Yellow LED is flashing Battery is charged to 90 %
Green LED is lit Battery is fully charged
Red LED is lit
Wrong pole connection (remove
mains cord plug and connect
the poles correctly)
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