HOSS - Owner's Manual 27
Battery Charging
The satisfactory performance of the DX system is critically dependent on the type and state of the batteries. The
battery charger used must be correctly selected and adjusted according to the battery manufacturer’s instructions.
Failure to do so may damage or destroy the batteries, give poor range, or be potentially dangerous. Batteries should
not be abused (for example by deep discharging or overcharging) and must be operated and maintained according
to the manufacturer’s instructions.
The battery charger socket is a 3 pin XLR type with pin configuration as shown below. Ensure that the charger
used is compatible with this pin out before connection. The safety link between B- and the Inhibit pin must be
fitted so that the wheelchair is prevented from driving when the batteries are being charged. The Drive Program
will show
‘ ‘ to indicate that the wheelchair is inhibited.
Warning :
Do not disconnect batteries or open circuit the circuit breaker during charging. This is dangerous to
both people and equipment.
Note :
The inhibit is shorted to B- external to the DX System.
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 joystick module
battery gauge. The wheelchair can, if required, be subsequently powered down by pressing the On/Off switch,
and charging will still proceed normally.
Battery Gauge
The Battery Gauge provides true, usable battery capacity information. A full battery with at least 85 % of rated
capacity, is represented by all LED’s lit. Some new batteries can start with as little as 80% capacity, developing
higher capacity in their early life (sometimes up to 110%), before slowly deteriorating over their rated life.
As the battery voltage drops, the number of LEDs lit reduces from right to left. When only the red LEDs are lit, the
available battery capacity is typically less than 10 %. At this level and below, the Battery Gauge flashes at 1 flash per
second to alert the user that the wheelchair is running on reserve capacity. The battery capacity will reduce more
rapidly in the reserve capacity range.
DX System Battery
Charger Plug
(front view)
