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VI. BATTERIES AND CHARGING
To charge the batteries using the off-board charger:
1. Position the front of your power chair next to a
standard electrical outlet.
2. Be certain the controller power is turned off and
the freewheel levers are in the engaged position.
See III. “Your Power Chair.”
3. Plug the off-board charger into the off-board
charger/programming socket on the controller.
See figure 24.
4. Plug the off-board charger into the electrical
outlet.
WARNING! The LED lights on the
charger indicate different charger
conditions at various times: charger
power on, charging in progress, and
charging complete. If the LED does
not indicate that charging is
complete within 24 hours, unplug the
charger from the outlet and contact
your Quantum Rehab Provider. Refer
to the manual supplied with the
charger for a complete explanation of
these indicators.
5. When the batteries are fully charged, unplug the
off-board charger from the electrical outlet and
then from the controller.
Figure 24. Battery Charging
Battery Break-in
To break in new batteries for maximum efficiency:
1. Fully recharge any new battery prior to its initial use. This brings the battery up to about 90% of its peak
performance level.
2. Operate your power chair throughout the house and yard. Move slowly at first, and do not travel too far until
you become accustomed to the controls and break in the batteries.
3. Give the batteries another full charge of at least 8 to 14 hours and operate your power chair again. The batteries
will now perform at over 90% of their potential.
4. After four or five charging cycles, the batteries will top off at 100% charge and last for an extended period.
Frequently Asked Questions (FAQs)
How does the charger work?
The battery charger takes the standard electrical outlet voltage of 120 VAC (alternating current) and converts it
to 24 VDC (direct current). The power chair batteries use direct current to run your power chair. When the battery
voltage is low, the charger works harder to charge the battery. As the battery voltage approaches full charge, the
charger doesn’t work as hard to complete the charging cycle. When the battery is fully charged, the amperage from
the charger is nearly at zero. This is how the charger maintains a charge but does not overcharge the battery.
Can I use a different battery charger?
You should use the charger supplied with the power chair. It is the safest, most efficient tool to charge the batteries.
We do not recommend using other types of chargers (e.g., an automotive battery charger).
NOTE: Your power chair’s charger will not operate after the batteries have been discharged to nearly zero
voltage. If this happens, call your Quantum Rehab Provider for assistance.