Controls System; Controls Protection System; Batteries; General Information On Charging - Invacare FDX User Manual

Invacare® FDX®

7 Controls System

7.1 Controls Protection System

The wheelchair controls system is fitted with an overload
protection.
If the drive is severely overloaded over a long period of time
(for example, when driving up a steep hill) and especially
when the ambient temperature is high, the controls system
could overheat. In this case, the wheelchair performance is
gradually reduced until it comes to a halt. The status display
shows a corresponding error code (refer to the user manual
for your remote). By switching the power supply off and
back on again, the error code is cleared and the controls
system is switched back on. It can however take up to five
minutes until the controls system has cooled down enough
for the drive to restore full performance again.
If the drive is stalled by an insurmountable obstacle, for
example, a curb or similar which is too high, and the driver
attempts driving for more than 20 seconds against this
obstacle, the controls system automatically switches off to
prevent the motors from being damaged. The status display
shows a corresponding error code (refer to the user manual
of your remote). By switching off and back on again, the
error code is cleared and the controls system is switched
back on.
A defective main fuse may be replaced only after
checking the entire controls system. A specialised
Invacare provider must perform the replacement.
You can find information on the fuse type in 11
Technical Data, page 108 .
86

7.2 Batteries

Power is supplied by two 12 V batteries. The batteries are
maintenance-free and only need regular charging.
In the following, you find information on how to charge,
handle, transport, store, maintain, and use batteries.

7.2.1 General Information on Charging

New batteries should always be fully charged once before
their first use. New batteries will be at their full capacity
after having run through approx. 10 - 20 charging cycles
(break-in period). This break-in period is necessary to
fully activate the battery for maximum performance and
longevity. Thus, range and running time of your mobility
device could initially increase with use.
Gel/AGM lead acid batteries do not have a memory effect
as NiCd batteries.

7.2.2 General Instructions on Charging

Follow the instructions listed below to ensure safe use and
longevity of the batteries:
• Charge 18 hours prior to initial usage.
• We recommend charging the batteries daily after every
discharge even after partly discharge, as well as each
night over night. Depending on the level of discharge,
it can take up to 12 hours until the batteries are fully
charged again.
• When the battery indicator reached the red LED range,
charge the batteries for 16 hours minimum, neglecting
the charge complete display!
• Try to provide a 24 hour charge once a week to make
sure that both batteries are fully charged.
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