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ELECTRICAL SYSTEM
Can I use a different battery charger?
Use only the charger supplied with the Blast. It is the safest, most efficient tool to charge the batteries. We do not recommend
using other types of chargers.
How often must I charge the batteries?
If you use your Blast on a daily basis, charge the batteries as soon as you are finished using your power chair. Your Blast will
be ready each morning to give you a full day's service. If you use your Blast 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. Do not charge the batter-
ies for more than 24 hours at a charging cycle.
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, footpath cracks, uneven and loosely packed surfaces, curves, and wind. All of these factors affect the
distance or running time per battery charge. The following are a few suggestions for obtaining the maximum range per charge.
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Always fully charge the batteries prior to your trip.
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Maintain 30-35 psi in pneumatic drive wheels.
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Plan your trip in advance to avoid inclines if possible.
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Limit baggage weight to essential items.
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Try to maintain an even speed and avoid stop-and-go driving.
What type of battery should I use?
We recommend deep-cycle batteries that are sealed and maintenance free. Deep-cycle batteries employ a much different
chemical technology than those used in car batteries, nickel-cadmium batteries (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. Sealed lead-acid batteries should be charged as often as possible. They do not have a "memory" like nickel-
cadmium batteries. Both sealed lead-acid (SLA) and gel cell are deep-cycle batteries that are similar in performance.
Use these specifications to reorder deep-cycle batteries:
Type:
Deep-cycle (sealed lead-acid or gel cell)
Size:
Group 24
Voltage:
12 volts each
Amperage: 70 or 80 amp hours
Why do my new batteries seem weak?
We work closely with our battery manufacturer to provide a battery that best suits your Blast's specific demands. Fresh
batteries arrive regularly at Pride 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 stabilise and adjust to its new ambient temperature. More
importantly, it takes 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 is well worth it to take the time to break in your battery properly.
NOTE: The useful life of a battery is quite often a reflection of the care it receives.
How can I ensure maximum battery life?
A fully charged, deep-cycle battery provides reliable performance and extended battery life. Keep your Blast'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 Blast operation and limited battery life.
How should I store my Blast and its batteries?
If you do not use your Blast regularly, we recommend maintaining battery vitality by charging the batteries at least once a
week.
Quantum Blast
12
INFMANU1871/REV D/OCTOBER 2002
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