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User manual | Qimova chair
Page 42 of 48 | Version 1.10
10.3
Maintaining the wheels
The standard tyres are made of a solid compound and cannot be punctured, nor do they
need to be checked for air pressure.
10.4
Batteries
The Qimova Power Chair is supplied with 2 pieces of 12 V batteries for cyclic use. The
batteries are spill-proof Valve Regulated Lead-Acid (VRLA) batteries of either AMG or gel
type.
10.4.1
Charging procedure
To prolong the battery lifetime, recharge as often as possible and avoid letting it fully
discharge. To recharge – plug the charger into the remote control. A full charge takes
approximately 8 hours. However, it is vital that whenever the battery charger is connected
to the chair and switched on, it remains so until indicating fully charged.
The wheelchair is automatically disabled from driving whenever the battery charger is
plugged in.
Connection of the battery charger will automatically power the wheelchair, if the
wheelchair was powered down at the time of connection. This allows the progress of
battery charging to be monitored on the Battery Gauge.
The wheelchair can, if required, be subsequently powered down by pressing the on/off
switch. Charging will then proceed normally.
The charger delivered as standard is a ‘Lindmark Electric ab’ charger 24V, 8 amp. It is
shockproof and waterproof (IP65). The charger can used with both 110V and 220V power
supply.
The charger can be connected for a long time without overcharging or damaging the
battery. The charging cycle initiates at high voltage 28.8 V for about 20 hours. After this
the charger switches to maintenance charging at 13.6 V.
If the charging current during high voltage charging falls below 0.8 Amp it automatically
switches to maintenance charging.
NOTE:
Low capacity warning condition
When the calculated available battery capacity drops below 10% of full capacity, the two
red LEDs on the left flash. The wheelchair can drive in this condition but the battery will be
in the reserve capacity range and battery capacity will begin to reduce rapidly. The Low
Capacity warning will not stop until the batteries have been recharged adequately.