LED INDICATORS
CLAMPS REVERSED (red) LED
flashing: The connections are reversed.
BOOST/CHARGING (yellow/orange)
LED lit: The charger has detected that a
battery is connected, and is performing the
selected operation—either Boost or Charge.
BOOST/CHARGING (yellow/orange)
LED flashing: The charger is in abort mode.
CHARGED/MAINTAINING (green)
LED pulsing: The battery is fully charged
and the charger is in maintain mode.
NOTE: See Operating Instructions for a
complete description of the charger modes.
TIMER BUTTON
The timer allows the battery to receive a
BOOST for a designated amount of time.
11. OPERATING INSTRUCTIONS
WARNING: A spark near the battery may
cause an explosion.
WARNING: When the unit is in either the
Boost/Charge or Engine Start mode, the
clamps are energized and will spark if
touched together.
CHARGING A BATTERY IN THE VEHICLE
1. Turn off all the vehicle's accessories.
2. Keep the hood open.
3. Clean the battery terminals.
4. Set the ON/OFF switch to the OFF
position.
5. Lay the AC/DC cables away from any
fan blades, belts, pulleys and other
moving parts that can cause injury.
6. For a negative-ground vehicle (as in
most vehicles), connect the charger's
POSITIVE (RED) clamp to the
POSITIVE (POS, P, +) battery post.
Next, connect the charger's NEGATIVE
(BLACK) clamp to the vehicle chassis
or engine block, away from the battery.
7. For a positive-ground vehicle, connect
the charger's NEGATIVE (BLACK)
clamp to the NEGATIVE (NEG, N, -)
battery post. Next, connect the
charger's POSITIVE (RED) clamp
to the vehicle chassis or engine
block away from the battery. NEVER
connect any clamps to the carburetor,
fuel lines or sheet-metal body parts.
8. Connect the charger to an electrical
outlet.
9. With the charger plugged in and
connected to the battery of the
vehicle, set the ON/OFF switch to the
Boost or Charge/Maintain position.
IMPORTANT: To accurately set the timer,
you must know the size of the battery (in
ampere hours) or reserve capacity (in
minutes) and the state of charge (see
table). The time limit is 240 minutes.
12V Battery Reading
12.8 volts or more
12.2 to 12.7 volts
Less than 12.2 volts
To set the timer:
1. Press the DISPLAY BUTTON and
choose TIME.
2. Press the TIMER BUTTON to set the
appropriate time.
3. To turn off the timer, press the
DISPLAY BUTTON and choose a
different setting.
10. CHARGE/MAINTAIN mode will start
by default. NOTE: TIMER function is
disabled in this mode. The BOOST/
CHARGING yellow/orange LED will
light if battery is properly connected.
When battery is fully charged, the
CHARGED/MAINTAINING green
LED will pulse. If charging cannot be
completed, the BOOST/CHARGING
yellow/orange LED will flash. The
battery may be bad; have it checked.
11. To use BOOST mode, press the RATE
SELECTION button.
NOTE: The BOOST/CHARGING
yellow/orange LED will remain on.
To use TIMER function, press TIMER
button to set desired time, in minutes.
When timer expires, the BOOST LED
will flash for 30 minutes and then unit
will go automatically into CHARGE/
MAINTAIN mode.
WARNING: If TIMER is not set, unit
will continue in BOOST mode until
RATE SELECTION button is pressed
again, or unit is turned off.
12. When disconnecting the charger,
set the ON/OFF switch to the OFF
position, disconnect the charger from
the AC power, remove the clamp from
the vehicle chassis, and then remove
the clamp from the battery terminal.
CHARGING A BATTERY
OUTSIDE OF THE VEHICLE
1. First, place battery in a well-ventilated
area.
2. Set the ON/OFF switch to the OFF
position.
3. Clean the battery terminals.
• 6 •
Battery Condition
Charged
Needs Charging
Discharged