5. Connect the POSITIVE (RED) charger
clamp to the POSITIVE (POS, P, +)
battery post.
6. Position yourself and the "negative post
extension" cable as far away from the
battery as possible, and connect the
NEGATIVE (BLACK) charger clamp to
the cable's free end.
7. Connect the charger to the electrical outlet.
8. Select the desired charge rate.
9. Monitor the charger and the battery.
10. When disconnecting the charger, set the
charge rate switch to the OFF position,
disconnect the charger from the AC power,
disconnect the negative clamp, and finally
the positive clamp.
11. A marine (boat) battery must be removed
and charged on shore.
MANUAL CHARGING MODE
When manual mode is performed, the
charger will continue to charge and will not
shut off. Monitor the charging process and
stop when the battery is fully charged. Not
doing so may cause damage to your battery
or result in other property damage or
personal injury.
USING THE ENGINE START FEATURE
Your battery charger can be used to jump
start your car if the battery is low. Follow all
safety instructions and precautions for
charging your battery. Wear complete eye
protection and protective clothing.
WARNING: Using the ENGINE START
feature WITHOUT a battery installed in the
vehicle could cause damage to the vehicle's
electrical system.
NOTE: If you have charged the battery and
it still will not start your car, do not use the
When you know the percent of charge and
the Amp hour (Ah) rating of your battery,
you can calculate the approximate time
needed to bring your battery to a full charge.
Example:
Amp hour rating = Reserve capacity + 16
NOTE: The Reserve Capacity can be
obtained from the battery's specification
sheet or the owners manual.
To calculate the time needed for
a charge:
1. Find the percentage of charge needed.
2. Multiply the Amp hour rating by the charge
needed, and divide by the charge rate.
CALCULATING CHARGE TIME
2
• 6 •
Engine Start feature, or it could damage the
vehicle's electrical system. Have the battery
checked.
1. Set switch #2 to the OFF position.
2. With the charger unplugged from the
AC outlet, connect the charger to the
battery following the instructions given
in the CHARGING A BATTERY IN THE
VEHICLE section.
3. Plug the charger AC power cord into the
AC outlet.
4. With the charger plugged in and
connected to the battery of the vehicle,
set switch #1 to the engine start position,
and set switch #2 to the down position.
5. Crank the engine until it starts or 3
seconds pass. If the engine does not
start, wait 6 minutes before cranking
again. This allows the charger and battery
to cool down.
NOTE: During extremely cold weather, or if
the battery is under 2 volts, charge the
battery for 5 minutes before cranking the
engine.
6. If the engine fails to start, charge the
battery for 5 more minutes before
attempting to crank the engine again.
7. After the engine starts, move switch #2
to the OFF position and unplug the AC
power cord before disconnecting the
battery clips from the vehicle.
8. Clean and store the charger in a dry
location.
NOTE: If the engine does turn over but
never starts, there is not a problem with the
starting system; there is a problem
somewhere else with the vehicle. STOP
cranking the engine until the other problem
has been diagnosed and corrected.
3. Multiply the results by 1.25 to find the
total time needed, in hours, to bring the
battery to full charge.
4. Add an additional hour for a deep-cycle
battery.
Example:
Ah rating x % of charge needed x 1.25 = hrs of charge
Charger Amp setting
100 (Ah rating) x .50 (charge needed) x 1.25 = 3.125 hrs
20 (Charger Setting)
100 x .50 x 1.25 = 3.125
20
You need to charge a 100 Ampere hour
battery for a little more than 3 hrs at the 20
Amp charge rate, using this example.