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Brake deactivated: warning on control panel
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6.9 Batteries/charging process
6.9.1 Safety instructions
NOTICE
Unauthorised battery replacement
Battery damage due to unauthorised changes to the product
► Battery replacement may only be performed by qualified personnel trained by the manufacturer.
► The charging profile of the battery charger established at the factory matches the batteries included in the
scope of delivery and may not be altered independently.
6.9.2 General
INFORMATION
► Please note that Ottobock has delivered this power wheelchair without batteries as per the order.
► Please note that batteries have been installed in your power wheelchair which are not included in Ottobock's
modular system. Ottobock assumes no liability for combinations with accessories from other manufacturers
not included in Ottobock's modular system.
► Prior to using this accessory, please read and observe the instructions for use / manufacturer's instructions
from the other manufacturer. These are included with the instructions for use.
► In case of questions or problems with these accessories, please contact the qualified personnel who adjusted
this product.
The power wheelchair is equipped with maintenance-free batteries. See the section "Technical data" for the battery
capacity.
The batteries are located under the seat of the power wheelchair, below the battery cover.
Prolonged driving when the battery is low results in deep discharge and battery damage. If the power wheelchair is
being driven when the battery is low the control unit switches to creep speed to save power.
6.9.3 Battery charging information
The range of the power wheelchair is determined by the battery capacity. The battery capacity is influenced by
many factors. In addition to the temperature, battery age and driving conditions, the charging cycle also has a pro
nounced effect on the capacity and therefore on the range.
Batteries reach their full capacity only after approx. 20 charge cycles. Only if the full capacity of the batteries has
been reached can the power wheelchair achieve the stated range.
At temperatures of < 0 °C/32 °F the battery capacity drops by up to 35% in relation to the capacity for an outside
temperature of 20 °C/68 °F. This shortens the range of the power wheelchair accordingly. Moreover the charge
level displayed on the control panel can differ more significantly from the actual battery capacity.
The following information should be observed for an optimal charging cycle:
•
The batteries can be charged at any time, regardless of the remaining charge level.
•
It takes about 10 hours until a discharged battery (only 1 flashing segment) is completely charged. When the
charging process is complete, the battery charger can remain connected with no risk of overcharging or dam
aging the battery. The battery charger features a programmed recharging phase that will maintain the battery
capacity at the previously reached level.
•
If the power wheelchair is used every day, the battery should be charged every night.
•
Never discharge the batteries completely (deep discharge).
•
The batteries will gradually discharge if the wheelchair is not used for extended periods of time. If the power
wheelchair is not used for an extended period, the batteries should be charged 1 x per week to maintain their
capacity.
•
After charging the batteries, the circuit breaker should be deactivated if the wheelchair is not used for more
than 3 days.
•
The power wheelchair control unit must be switched off while the batteries are charging to allow all of the char
ging current to be fed into the battery.
Juvo
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Brake released
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