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17
BATTERIES AND CHARGING
Daily Use
If you use your power chair on a daily basis, charge the
batteries as soon as you are finished using your power
chair. Your power chair will be ready each morning to
give you a full day’s service. It is recommended that you
charge the batteries at least 8 to 14 hours after daily
use. Quantum Rehab recommends that you charge
your batteries for an additional 4 hours after the battery
charger indicates that charging is complete.
Infrequent Use
If you use your power chair infrequently (once a week or
less), you should charge the batteries at least once per
week for 12 to 14 hours.
NOTE: Keep your batteries fully charged and avoid
deeply discharging your batteries. Refer to the
manual supplied with the battery charger for charging
instructions. Quantum Rehab recommends charging
your batteries for at least 48 continuous hours once per
month to improve battery performance and battery life.
How can I get maximum range or distance per charge?
Rarely do you have an ideal driving situation such as smooth,
flat, hard terrain with no wind, hills, or curves. More often you
are presented with hills, pavement cracks, uneven and loosely
packed surfaces, curves, and wind. All of these factors will affect
the distance or running time per battery charge. Below are a
few suggestions for obtaining the maximum range per charge:
Always charge the batteries fully prior to your trip.
Plan your trip in advance to avoid inclines if possible.
Limit baggage weight to essential items.
Try to maintain an even speed and avoid stop-and-go
driving.
Quantum Rehab recommends charging your batteries
for at least 48 continuous hours once per month to
improve battery performance and battery life.
What type of batteries should I use?
We recommend deep-cycle batteries that are sealed and
maintenance free. AGM batteries are deep-cycle batteries
that are similar in performance. Refer to the specifications
table for more information regarding the batteries used with
your power chair.
Corrosive chemicals contained in batteries. Use only
AGM batteries to reduce the risk of leakage or explosive
conditions.
Why do my new batteries seem weak?
Deep-cycle batteries employ a much different chemical
technology than that used in car batteries, nickel-cadmium
(nicads), or in other common battery types. Deep-cycle
batteries are specifically designed to provide power, drain
down their charge, and then accept a relatively quick recharge.
AGM batteries should be charged as often as possible. They
do not have a “memory” like nickel-cadmium batteries.
We work closely with our battery manufacturer to provide a
battery that best suits your power chair’s specific demands.
Fresh batteries arrive regularly at Quantum Rehab and
are promptly shipped with a full charge. During shipping,
the batteries encounter temperature extremes that may
influence initial performance. Heat robs the charge from
the battery, and cold slows the power available and extends
the time needed to recharge the battery (just as with a car
battery).
It might take a few days for the temperature of the battery
to stabilize and adjust to its new ambient temperature. More
importantly, it will take a few “charging cycles” (a partial
drain—then a full recharge) to establish the critical chemical
balance that is essential to the battery’s peak performance
and long life. It will be well worth it to take the time to break
in your battery properly.
How can I ensure maximum battery life?
A fully charged deep-cycle battery will provide reliable
performance and extended battery life. Keep your power
chair’s batteries fully charged whenever possible. Batteries
that are regularly and deeply discharged, infrequently
charged, or stored without a full charge may be permanently
damaged, causing unreliable power chair operation and
limited battery life.
NOTE: The useful life of a battery is quite often a
reflection of the care it receives.
How should I store my power chair and its batteries?
If you do not use your power chair regularly, we recommend
maintaining battery vitality by charging the batteries at least
once per week.
If you do not plan on using your power chair for an extended
period, fully charge the batteries prior to storage. Disconnect
the battery harnesses and store the power chair in a warm,
dry environment. Avoid temperature extremes, such as
freezing and excessively hot conditions, and never attempt
to charge a frozen battery. A cold or frozen battery should be
warmed for several days prior to recharging.
What about public transportation?
AGM and Gel-Cell batteries are designed for application in
power chairs and other mobility vehicles. These batteries are
Federal Aviation Administration (FAA) approved, allowing
safe transportation on aircraft, buses, and trains, as there is
no danger of spillage or leakage. We suggest you contact the
carrier’s ticket counter in advance to determine that carrier’s
specific requirements.
What about shipping?
If you wish to use a freight company to ship your power
chair to your final destination, repack your power chair in the
original shipping container if possible and ship the batteries
in separate boxes.
WARNING!
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