Owner's Manual
• 9 •
Using the 50 Amp Engine Start feature
Your battery charger can be used to jumpstart your car if the battery is low. Follow these
instructions on how to use the ENGINE START feature.
Follow all safety instructions and precautions for charging your battery.
Wear complete eye protection and clothing protection. Charge your
battery in a well-ventilated area.
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 engine start feature, or it could damage the vehicle’s electrical system.
Do not leave the charger in Engine Start Mode for longer than 9 minutes at
a time, or you will damage the charger.
1. With the charger unplugged from the AC outlet, connect the charger to the battery
following the instructions given in section 6: FOLLOW THESE STEPS WHEN
BATTERY IS INSTALLED IN VEHICLE.
2. Plug the charger AC power cord into the AC outlet.
3. With the charger plugged in and connected to the battery of the vehicle, set the
charge rate selector switch to the engine start position.
4. Crank the engine until it starts or 10 seconds pass. If the engine does not start, wait 3
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.
5. If the engine fails to start, charge the battery for 5 more minutes before attempting to
crank the engine again.
6. After the engine starts, unplug the AC power cord before disconnecting the battery
clips from the vehicle.
7. 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.
Engine Starting Notes
During the starting sequence listed above, the charger is set to one of three states.
Wait for cranking – The charger waits until the engine is actually being cranked before
delivering sufcient charge (up to 50 amps) for engine start. While waiting, the charger
delivers a charge of up to 10 amps, and will go into Abort Mode if the engine is not
cranked within 15 minutes.
Cranking – When cranking is detected, the charger will automatically deliver up to its
maximum output as required by the starting system for as long as 10 seconds of cranking.
Cool Down – After cranking, the charger enters a mandatory 3 minute (180 second) cool
down state. During the cool down period, the charger delivers a charge of up to 10 amps
and the LED will blink slowly (1x per second). After 3 minutes, the LED will start blinking
fast (4x per second), indicating that another crank cycle can be started.