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4.4 Safety instructions for the battery charger and the charging process
Before starting the charging process, both wheels must be switched off.
If the batteries are charged directly on the wheelchair, this needs to be secured using its parking brakes against
inadvertently rolling away.
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The charging process takes place directly on the wheels, which do not need to be removed from the wheelchair. In general, both
batteries should always be charged at the same time, which is why the battery charger has two charging cables.
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Only use the charger supplied by Alber to charge your twion batteries. The charging process ends automatically as soon as the battery is
fully charged. This avoids overcharging.
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Do not use any other charger than the one supplied by Alber.
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Do not use the charger to charge batteries other than the batteries installed in your twion.
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If the twion wheels are not used for a prolonged period (more than one day), the battery charger needs to be disconnected first from
the mains socket and then from the wheel (battery).
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Do not expose the charger to moisture of any kind during charging (water, rain water, snow, etc.).
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Be aware of condensation. If the charger is brought from a cold into a warm room, condensation may occur on and in the device. In this
case, refrain from using the charger until all condensation has dissipated. Please note that this may take several hours.
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Do not carry out the charging process in rooms where moisture may affect the charger.
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Never carry the charger by its power cable or the charger cables.
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Never tug at the power cable to disconnect the charger from the mains socket.
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Lay the power cable and the two attached charging cables in such a way that nobody can step on it or trip over it and so that the
cables and charger are protected against any other harmful effects or stresses.
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Do not operate the charger if the power cable, one or both of the charging cables or the plugs attached to the cables are damaged.
Damaged parts must be replaced immediately by a specialist dealer that has been authorised by Alber.
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Do not use or disassemble the charger if it has received a hard blow or was dropped or damaged in some other way. Take the damaged
charger to a specialist dealer that has been authorised by Alber to perform repairs.
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The charger must not be used by children.
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The charger is designed to operate only with mains alternating voltage of 100V to 240V.
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Never attempt to disassemble or modify the charger.
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Do not cover the charger during the charging process or place any objects on top of the device.
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Never subject cable and plug to any pressure. Overstretching or bending the cable, pinching cables between a wall and a window frame
or placing heavy objects on a cable or a plug may result in electric shock or fire.
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Do not connect the two pins of the charging cable plugs to any metal objects.
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Ensure that the plug is firmly inserted in the socket.
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Do not touch the mains plug or either charging cable plugs with wet hands.
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Do not use the charger plugs and/or the mains plug if they are wet or dirty. Before inserting them, clean the plugs using a dry cloth.
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Once the charging process is complete, first disconnect the plug of the charger from the socket and then disconnect the charging plug
from the charging sockets of the twion wheels.
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Ensure that after disconnecting the charger, no moisture can get into the socket [2].
Before and after charging, ensure that the charger plugs [9] and the sockets in the on/off button [2] of the twi-
on wheel are clean and that there are no metallic particles. If you detect such particles, use a dry and clean cloth
to remove them.
The charger plugs are magnetic.
Therefore prevent the plugs coming into contact with medical implants, electronic storage media, bank cards or
similar items.
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