03/2010
B500 | B500-S
Page 122
Operation
driving, the way you charge the batteries also has a con-
siderable effect on their capacity and thus on the dis-
tance range. For an optimal charging frequency the fol-
lowing applies:
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The batteries can be charged at any time independently
of their remaining capacity.
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It takes about 10 hours until a discharged battery (only
one, flashing segment) is completely charged. When
the charging process is complete, the battery charger
can remain connected with no risk of overcharging or
damaging the battery. The battery charger features a
programmed recharging phase that will maintain the
battery capacity at the previously reached level.
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If the power wheelchair is used daily, we recommend
connecting the battery charger over night to have the
full capacity available every day.
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When the power wheelchair is not used for an extended
period of time, the battery will become discharged
over time. It is therefore necessary to charge the bat-
teries at least once a week to maintain full battery
capacity. We also recommend removing the fuse, when
the power wheelchair is not going to be used for an
extended period of time.
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Total discharge of the batteries should be avoided.
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When the batteries are charging, the controls on the
power wheelchair must be switched off to allow the
charging current to be fed completely into the battery.
For battery charging the following must be observed:
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Only the battery charger provided by Otto Bock may
be used for charging. Failure to comply will render the
warranty null and void.
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The voltage settings on the battery charger must cor-
respond to the voltage used in your country.
7.5.2 Battery charger
The battery charger is designed for maintenance-free
and low-maintenance batteries. The charger can oper-
ate along two characteristic curves to charge the respec-
tive batteries. The power wheelchair is delivered with the
appropriate characteristic curve, set in accordance with
the kind of battery the wheelchair is equipped with. If the
battery charger is to be used with another power wheel-
chair or if new batteries are installed, the characteristic
curve must be checked.
ATTEnTIOn !
Battery damage!
Setting the characteristic curve incorrectly can
result in permanent damage to the battery.
