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DIGITAL DISPLAY BUTTON
Use this button to set the function of the
digital display to one of the following.
• BATTERY %: The digital display shows
an estimate of the percent of charge of
the battery connected to the charger
battery clamps.
• VOLTAGE: The digital display shows the
voltage at the charger battery clamps in
DC volts.
• ALTERNATOR %: The digital display
shows an estimated percentage of the
output of the vehicle charging system
connected to the charger battery clamps
as compared to a properly functioning
system.
BATTERY TYPE BUTTON
Use this button to set the type of battery to
be charged to one of the following.
• 12V REGULAR: This is the type of
battery usually used in cars, trucks,
and motorcycles. These batteries have
vent caps and are often marked “low
maintenance” or “maintenance-free”.
• 12V DEEP CYCLE: Deep cycle batter-
ies are usually marked as “deep cycle”
or “marine”. Deep cycle batteries are
usually larger than the other types.
• 12V AGM/GEL: AGM and gel cell bat-
teries have sealed cases without vent
caps. Such batteries are often smaller
than the other types.
• 6V REGULAR: This is the type of bat-
tery usually used in antique and some
specialized vehicles. The 6V REGULAR
battery type is not selectable for batteries
greater than 8.5V DC.
With the exception of AGM and gel cell
batteries, all other battery types may or
may not have vent caps. Vent caps are
located on top of the battery and provide a
means to add distilled water when needed.
Batteries should be marked with their type.
If charging a battery that is not marked,
check the manual of the item that uses the
battery. If the battery type is unknown, use
the 12V REGULAR setting. Make sure the
battery complies with the safety instructions
on page 2.
CHARGE START BUTTON
Use this button to set the maximum charge
rate to one of the following.
• SMALL BATTERY: Provides 2A for
charging small batteries such as those
commonly used in garden tractors, snow
mobiles and motorcycles. The 2A rate
is not intended to be used as a trickle
charger for larger batteries.
• REGULAR BATTERY: Automatically
switches between 15 and 40 amps, or
provides 15 amps continuous depend-
ing on the battery. Use for charging
automotive batteries, marine batteries,
and deep cycle batteries. Not intended
for industrial applications.
• ENGINE START: Provides 125 amps for
cranking an engine with a weak or run
down battery. Always use in combination
with a battery.
• OFF: Charger returns to tester mode
and the SMALL BATTERY, REGULAR
BATTERY and ENGINE START LEDs
all stay OFF.
CHARGER CONTROLS
DIGITAL DISPLAY