Harbor Freight Tools Briefcase Solar Charger 68750 - Manual (Page 5)

Page 5 For technical questions, please call 1-800-444-3353. SKU 68750
Operation
Use Voltage Regulator (not included) between Solar
Charger and battery to prevent overcharging battery and
consequent damage.
The Solar Charger may also be used to maintain charge
on batteries which are powering other items, such as a
car radio while the car is parked.
1. For charging an external battery, attach the
Battery Clamp Adaptor (20) to the main Cable
and connect battery clamps to battery.
NOTE: The Solar Charger must have at least four
hours of direct sunlight to fully charge a battery.
WARNING! Connect Battery Clamps according
to correct polarity (red for positive and black for
negative.) Do not short circuit the Battery Clamp.
2. Set the voltage switch to either 12V to Charge a 12V
battery or 24V to charge 18V and 24V batteries.
See below.
CAUTION: Disconnect the Solar Charger from
cigarette lighter or battery terminal before
starting engine. Surges of electricity from the
alternator may damage the Solar Panel.
Servicing
Procedures not specifically explained in
this manual must be performed by a
qualified technician.
TO PREVENT SERIOUS INJURY
FROM ELECTRIC SHOCK:
Before service, maintenance or cleaning:
a. Dry solar panel and outdoor wiring thoroughly
while wearing electrically insulated gloves.
b. Cover all solar panels with an opaque
cover, such as a blanket.
c. Disconnect all solar panels.
d. Disconnect all batteries.
TO PREVENT SERIOUS INJURY FROM
ELECTRIC SHOCK OR CUTS:
Do not use damaged solar panel.
If wiring insulation is damaged or
weathered, glass is cracked, or housing
is opened, have the problem corrected
before further use.
Note: It is normal to see up to 20% degradation in
amorphous silicon solar panel performance within the
first 6 months before the amorphous coating stabilizes.
Cleaning
Clean and inspect the Briefcase Solar
Charger system MONTHLY, or more
frequently to maintain peak efficiency.
1. Wear electrically insulated gloves and
ANSI-approved safety goggles. Dry solar
panels and outdoor wiring thoroughly.
2. Cover all solar panels with an opaque
cover, such as a blanket.
3. Disconnect all solar panels and batteries.
4. Clean solar panels one at a time with mild, non-
abrasive cleanser and soft cloth and paper towels.
Do not clean with brushes or abrasive cleaners.
5. Inspect the general condition of the Briefcase Solar
Charger system (panels, batteries, controllers,
and mounting). Check for loose hardware,
wiring insulation damage or weathering, cracked
glass, open housing, cracked or broken parts,
loose or corroded contacts, and any other
condition that may affect its safe operation.
6. Inspect and maintain batteries according
to supplier’s instructions.
Adjustment
To increase efficiency:
1. In the Winter, increase the panel’s angle by 10°.
2. In the Summer, decrease the angle by up to 10°.
3. In the Spring and Fall, keep the panel at
the angle recommended on page 4.