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This is usually caused by a drain on the
battery or the battery could be bad. Make
sure there are no loads on the battery. If
there are, remove them. If there are none,
have the battery checked or replaced.
MAINTAINING A BATTERY
The MC1300 charges and maintains
6V and 12 volt batteries, keeping them at
full charge.
NOTE: The maintain mode technology
allows you to safely charge and maintain
a healthy battery for extended periods of
time. However, problems with the battery,
electrical problems in the vehicle, improper
connections or other unanticipated
conditions could cause excessive current
draws. As such, occasionally monitoring your
battery and the charging process is required.
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 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.
Have the battery checked.
1. With the charger unplugged from the
AC outlet, connect the charger to the
battery following the instructions given
in Follow These Steps When Battery
is Installed in Vehicle.
2. Connect the charger to a live
grounded 120V AC outlet.
3. With the charger plugged in and
connected to the battery and chassis,
press the Rate Selection button
until the Engine Start LED is lit, and
then press the START button.
4. Crank the engine until it starts or
7 seconds pass. If the engine does not
start, repeat. Do not crank during the
cool down period (see below).
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 clamps 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 four states:
• Wait for ready – The charger charges the
battery for 2 minutes before the Wait for
Cranking state. While waiting for ready, the
digital display shows On and the engine
can be cranked. For severely discharged
batteries, it is not recommended to crank
during this time.
• Wait for cranking – The charger waits
until the engine is actually being cranked
before delivering the amps for engine
start. While waiting for cranking, the digital
display shows rdy.
• Cranking – When cranking is detected,
the charger will automatically deliver up
to its maximum output as required by the
starting system for up to 7 seconds.
• Cool Down – After repeated cranking
during a 3-minute ready period, the
charger enters a mandatory 3 minute
(180 second) cool down state. The digital
display indicates the remaining cool
down time in seconds. It starts at 180 and
counts down to 0. After 3 minutes, the
digital display will change from displaying
the countdown to displaying rdy. After
2 hours of Engine Starting, the unit will
automatically exit from the charging mode,
just as if the STOP button had been
pressed; the LED will not be lit.
POWER-UP AUTO-START
This charger is equipped with an auto-start
feature, which is triggered only when the
charger is rst powered up. If the START
button is not pressed within 30 seconds,
the unit will search for a battery. If the
unit detects a battery that is properly
connected, the unit will set the rate to 50A
Boost , battery type will be set to AGM, it
will automatically start the charge process,
and the (yellow/orange) LED will light.
FAN OPERATION
The fan will operate as needed and it is
normal for the fan to sometimes operate
continuously. Keep the area near the
charger clear of obstructions to allow the
fan to operate efciently.