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4. Battery pack
Before starting up the e-fix and before charging the battery pack, read and observe
the general information and instructions and the safety instructions and precautions in
chapters 4.7 to 4.11. Failure to comply with the safety precautions and instructions may
damage the product or result in electric shock, fire and/or serious injuries. The lithi-
um-ion battery pack contains chemical substances that may cause hazardous reactions if
the safety instructions specified here are disregarded. Alber GmbH cannot be held liable
for damage caused by non-compliance with the general information and safety instruc-
tions.
4.1 Displays on the battery pack
The battery pack that is required for operating the e-fix is fitted as standard underneath
the wheelchair seat. The available capacity of the battery pack is displayed by white
LEDs [27] that light up as soon as the control unit is switched on. If the control unit is
switched off, the capacity can be displayed by quickly pressing the info button [26]. The
following indications mean:
5 LEDs light up – the battery pack is charged to 100%. Avoid high speeds when driving
down slopes as the current feedback in the wheels may lead to overvoltage in the battery
pack and force the wheels to shut down.
4 LEDs light up – the battery pack is charged to 80%.
3 LEDs light up – the battery pack is charged to 60%.
2 LEDs light up – the battery pack is charged to 40%.
We strongly recommend that you do not cover expansive distances without previously
charging the battery pack.
1 LED lights up – the battery is charged to 20%.
Charge the battery pack before using the e-fix.
If the charge is less than 20 per cent, parts of the user screen in the control unit display
are shown in orange, if the charge is less than 10 per cent, these are shown in red.
If the red LED [28] lights up (fault indication), an error has occurred. This will be shown
in the control unit display (see also chapter 6).
28
