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X. BATTERIES
A. INTRODUCTION
1. Notes:
• Batteries supply the power for your chair. They contain a finite
amount of energy and have limits on how long they can store and
supply energy.
• You can charge batteries only a certain number of times before they
will fail and no longer hold a charge.
• For answers to questions about batteries, consult your supplier.
2
. Use Proper Battery Case:
Your chair operates on a 12A battery pack.
• Only use an authorized Sunrise battery pack.
3. Breaking In:
• A battery requires “breaking-in” for the first 6 to 12 charges. It will
not accept a full charge for this period.
• It is best to limit the length of your trips until you break the batteries
in and you know the range of your chair.
4. Discharged Batteries:
• Never allow a battery to completely discharge. If you operate your
wheelchair until it has almost stopped, you will greatly reduce the life
of your batteries.
•
Never let a battery sit in a discharged condition. Give unused or
stored batteries a full charge once per month.
• Always fully charge the batteries. Avoid “topping off” with
frequent charges.
Never connect a life support or auxiliary device to a
wheelchair battery. The electrical system may fail
and result in severe injury to or death of rider.
B. BATTERY CHARGER
A battery charger produces a direct current (DC). When applied to a dis-
charged battery, this reverses the chemical reaction that led to its discharge.
1. Charge Rate. How fast a battery will charge depends on:
• Its electrical capacity
, state of charge, electrolyte temperature, and
internal condition.
• The DC output of the charger. (The charge rate will vary if the alter-
nating current (AC) supply is higher or lower than 110 volts (or 230V
in Europe)).
2.
CAUTION–
T
o A
void Damage to the Charger
• Never expose charger to rain or snow
.
• Never unplug charger by pulling on the electrical cord. This will
damage the cord.
• Never open a charger or attempt to repair it yourself. Return charg-
er to Sunrise or have repairs made only by a qualified person.
•
K
eep cord out of the way, where it will not be stepped on, tripped
over, or damaged.
3. CAUTION– To Avoid Damage to the Battery
• Make sure you use the correct setting for sealed (gel) batteries
(located on the off-board charger) if applicable.
•
Never charge a frozen battery. A fully charged battery will rarely
freeze, but the fluid in a discharged battery can freeze at 16 degrees
Fahrenheit (minus 9 degrees Centigrade). If you suspect a battery is
frozen, thaw it before charging.
Lead acid batteries generate explosive gas while
charging. Completely read and follow all warnings
a
bout the batteries in this user instruction manual
and any labels applied to the product. Failure to do
so could result in fire, explosion, injury and/or death.
C. ACID BURNS (SEALED LEAD ACID BATTERIES)
Acid in batteries is corrosive. If the battery pack is damaged or punctured,
the acid inside can cause serious burns to the eyes and skin and can damage
floors, furniture, clothing and your wheelchair.
1. Use extreme care not to damage the battery pack when
operating your chair or transporting the battery pack.
2. If battery should leak due to dammage, avoid contact of acid
with bare skin or clothing.
3. If acid contacts your skin or clothing, wash immediately with
soap and water.
4. If acid contacts your eyes, immediately flood eyes with cold
running water for at least 15 minutes. Seek medical attention
immediately.
D. CONNECTING BATTERIES IN BATTERY PACK
1. Each battery weighs up to 25 lbs. Take care to avoid injury
when lifting.
2. Before working around batteries, remove all metal personal
effects, such as necklaces, rings, watches, pins, and other
metal jewelry that might contact battery terminal and cause
a short.
Never make direct contact across both battery ter
-
minals, as an explosion may occur. A spark may
result in an explosion and/or fire resulting in severe
injury or death.
101266 Rev. B
15
ENGLISH
X. BATTERIES