03/2010
B500 | B500-S
Page 121
Operation
fig. 18
Batteries
5. Close the battery case and reinsert and attach the
seat bottom.
Maintenance-free lead gel batteries can be used as an
alternative.
See section 7.3.4 for battery capacity display on the con-
trol panel.
7.5.1 charging
DAnGEr !
Explosion hazard!
Explosive gases can develop while the batter-
ies are charging. The following safety instruc-
tions must be followed under all circumstanc-
es:
Ensure sufficient ventilation when charging the
batteries in closed rooms.
Smoking and fire are not permitted.
Sparks must be avoided.
Do not cover the vent slots in the housing.
ATTEnTIOn !
Battery damage!
Driving over a longer period of time with only
the lower segments of the battery indicator lit
will discharge the battery completely and dam-
age it. There is a risk that the power wheel-
chair may stop due to zero battery capacity
and bring the user into a dangerous situation.
The remaining battery capacity determines the distance
range of the power wheelchair. Many factors have an
influence on the battery capacity. Besides the tempera-
ture, the age of the batteries and the time and extent of
