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• 10 •
USING CHARGE MODE
Use for charging automotive, marine and deep-cycle batteries. Monitor the charging process and stop
when the battery is fully charged. Not doing so may damage your battery and result in property damage
or personal injury.
USING BOOST MODE
Use Boost mode for quickly adding energy to a severely discharged or large capacity battery prior to
Engine Start. Monitor the boosting process.
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 damage the
vehicle’s electrical system.
NOTE: If you have charged the battery and it still will not start your car, do not use the Engine Start
feature, or it could damage the vehicle’s electrical system. Have the battery checked.
1. Set the timer 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 Follow These Steps When Battery Is Installed In Vehicle section.
3. Plug the charger’s AC power cord into the AC outlet.
4. With the charger plugged in and connected to the battery of the vehicle, set the Charge Rate selector
switch to the Engine Start position.
5. Crank the engine until it starts or 5 seconds pass. If the engine does not start, wait 3 minutes before
cranking again. This will precharge the battery.
NOTE: During extremely cold weather, or if the battery is under 2 volts, use Boost or Engine Start for 5
minutes before cranking the engine.
6. If the engine fails to start, use Boost or Engine Start for 5 more minutes before attempting to crank
the engine again.
7. After the engine starts, move the timer to the OFF position and unplug the AC power cord before
disconnecting the battery clamps 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.
FAN OPERATION
It is normal for the fan to run while the timer is on. Keep the area near the charger clear of obstructions,
to allow the fan to operate efciently.
12. CALCULATING CHARGE TIME
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
2
NOTE: The Reserve Capacity can be obtained from the battery‘s specication 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.
3. Multiply the results by 1.25 to nd the total time needed, in hours, to bring the battery to full charge.
4. Add an additional hour for a deep-cycle battery.
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