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 pre-charge 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 efficiently.
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 specification sheet or the owner’s 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 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 0.50 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.
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