Schumacher SP3 - Manual (Page 10)

• 10 •
Charging
1. Ensure that all of the charger components are in place and in
good working condition, for example, the plastic boots on the
battery clips.
2. Connect the battery following the connection instructions
described in Using the Quick-Connect Cable Connectors section.
3. Connect the AC power following the precautions listed in
section 8.
4. When the charger starts, the display will show “ANALYZING
BATTERY” while the charger determines if the battery is properly
connected, the condition of the battery and whether it is a 6 volt
or 12 volt battery. If everything is good, the charger will start
charging; the CHARGING (yellow) LED will be lit and the display
will show “CHARGING 12V (or 6V) and the Battery Percentage
of Charge”. If the charger determines there is a problem, the
display will show what the problem is. Either correct the problem
or have the battery checked/replaced.
Using the Quick-Connect Cable Connectors
Connect any of the three output cable assemblies to the charger
in a matter of seconds. Make sure to place the charger on a dry,
non-flammable surface.
Never connect the clamp and ring terminal connectors
together for use in other applications, such as external battery or
other power source charging, or to extend the output cable length,
as reverse polarity and/or overcharge conditions will occur.
50 Amp Battery Clips
1. Connect the end of the charger output cable to the end of the
50 Amp Battery clips cable.
2. Follow the steps in sections 6 and 7 to connect the output clips
to the battery.
3. After a good electrical connection is made to the battery, plug
the power cord into a grounded 120V AC electrical wall outlet.
Quick-Connect Cable with Fuse
The ring connectors permanently attach to the battery, providing easy
access to quickly connect the charger to your battery. This application
is appropriate for motorcycles, lawn tractors, ATVs and snowmobiles.