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3. With the charger plugged in and connected to the battery and chassis, set the ON/OFF switch to
either the 12V or 24V position, press the Rate Selection button until the Engine Start LED is lit, and
then press the START button.
4. If the battery is properly connected the Engine Start LED will light solid and the display will show
ENGINE STARTING ON. If display shows CONNECT CLAMPS, check the battery connections.
When the Engine Start output is enabled, the display will show READY.
5. Crank the engine until it starts or 5 seconds pass. If the engine does not start, wait a few 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, use the Boost setting for 5 minutes before cranking the engine.
NOTE: After 3 minutes in Engine Start mode, the charger will enter into a cool-down period of 180 seconds,
to allow the charger and the battery to cool down.
6. If the engine fails to start, use the Boost rate for 5 minutes before attempting to crank the engine again.
7. After the engine starts, press the ON/OFF switch to turn OFF, unplug the AC power cord before
disconnecting the battery clamps from the vehicle.
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.
ENGINE STARTING NOTES
Cool Down – After cranking, the charger enters a mandatory 3 minute (180 second) cool down state.
The digital display will show COOL DOWN XXX SECONDS REMAINING. It starts at 180 and counts
down to 0. After 3 minutes, the digital display will change to READY. The Charging/Boosting (yellow/
orange) LED will then be lit.
USING THE BATTERY VOLTAGE TESTER
1. With the charger unplugged from the AC outlet, connect the charger to the battery, following the
instructions given in previous sections.
2. Plug the charger’s AC power cord into the AC outlet.
3. Set the ON/OFF switch to the 12V or 24V position. DO NOT choose a rate with the Rate Selection button.
4. If necessary, press the Battery Type button until the correct type is indicated.
5. Read the voltage on the digital display. Keep in mind that this reading is only a battery voltage reading;
a false surface charge may mislead you. Compare the reading to the following chart.
12V Battery Voltage Reading 24V Battery Voltage Reading
Battery Condition
12.8 or more
25.6 or more
Charged
12.2 to 12.7
24.4 to 25.4
Needs charging
Less than 12.2
Less than 24.4
Discharged
TESTER AND CHARGER
When first plugged in and the ON/OFF switch set to the 12V or 24V position, the unit operates only as
a tester, not as a charger. Selecting a charge rate and pressing the START button activates the battery
charger and deactivates the tester.
POWER-UP IDLE TIME LIMIT
If no button is pressed within 10 minutes after the battery charger is first powered up, the charger will
automatically switch from tester to charger if a battery is connected. In that case, the charger will be set to
the Boost rate and Gel battery type.
TESTER WITHOUT TIME LIMIT
If either the Display Mode or Battery Type button is pressed within the first 10 minutes after the battery
charger is powered up, the unit will remain a tester (not a charger) indefinitely, unless a charge rate is
selected and the START button is pressed.
