V I . B A T T E R I E S A N D C H A R G I N G
To charge the batteries using the off-board charger:
1. Position the front of your power chair next to a standard electrical outlet. See figure 22.
2.Be certain the controller power is turned off and the power chair is in drive mode.
3.Plug the
programming socket on the controller.
4. Plug the
NOTE: The LED lights on the charger indicate different
charger conditions at various times: charger power on, charging in progress, and charging complete. 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.
Battery Break-in
Figure 22. Battery Charging
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 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.
How often must I charge the batteries?
Many factors come into play when deciding how often to charge the batteries. You may use your power chair all day on a daily basis or you may not use it for weeks at a time.
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