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percent range is from 0 to 100%. Read-
ings below 0 (13.2 volts) will read LOW and
readings above 100% (14.6 volts) will read
HIGH. If you get a HIGH or LOW reading,
have the electrical system checked by a
qualified technician.
• Voltage – The Digital Display shows the
voltage at the charger battery clamps, in
DC volts
RATE SELECTION BUTTON
Use this button to select one of the fol-
lowing:
• 6A<>2A CHARGE/MAINTAIN – For
charging small and large batteries. Not
recommended for industrial applications.
• 60A BOOST – For quickly adding energy
to a severely discharged or large capac-
ity battery prior to ENGINE START. The
unit will automatically switch to 6A<>2A
CHARGE/MAINTAIN after the 60A
BOOST operation has completed.
• ENGINE START – Provides high amper-
age for cranking an engine with a weak
or run-down battery. Always use in
combination with a battery.
NOTE: Once the charger has started
charging the battery, if you press the Rate
Selection button once, the output current
is shut off and the display with show OFF
and then the battery voltage. If you press
the Rate Selection button again, the cur-
rent will go back on at the same setting it
was when it was turned off.
LED INDICATORS
CLAMPS REVERSED (red) LED flashing:
The connections are reversed.
CHARGING (yellow/orange) LED lit: The
charger is charging the battery.
CHARGING (yellow/orange) LED flash-
ing: The charger is in abort mode.
CHARGED/MAINTAINING (green) LED
pulsing: The battery is fully charged and
the charger is in maintain mode.
NOTE: See the Operating Instructions
section for a complete description of the
charger modes.
BATTERY TYPE BUTTON
Use this button to set the type of battery.
• STANDARD – Used in cars, trucks and
motorcycles, these batteries have vent
caps and are often marked “low main-
tenance” or “maintenance-free”. This
type of battery is designed to deliver
quick bursts of energy (such as starting
engines) and has a greater plate count.
The plates are thinner and have some-
what different material composition.
Standard batteries should not be used
for deep-cycle applications.
• AGM – The Absorbed Glass Mat con-
struction allows the electrolyte to be
suspended in close proximity with
the plate’s active material. In theory,
this enhances both the discharge and
recharge efficiency. The AGM batter-
ies are a variant of Sealed VRLA (valve
regulated lead-acid) batteries. Popular
uses include high-performance engine
starting, power sports, deep-cycle,
solar and storage batteries.
• GEL – The electrolyte in a GEL cell has
a silica additive that causes it to set
up or stiffen. The recharge voltages on
this type of cell are lower than those for
other styles of lead-acid battery. This is
probably the most sensitive cell in terms
of adverse reactions to overvoltage
charging. Gel batteries are best used in
VERY DEEP cycle application and may
last a bit longer in hot weather appli-
cations. If the wrong battery charger is
used on a gel cell battery, poor perfor-
mance and premature failure will result.
TOGGLE SWITCHES
These are found on the base of the unit.
VOLTAGE SELECTOR SWITCH – Select
6V or 12V.
ON/OFF SWITCH – Use this switch to
select between the Charge/Maintain rate,
Boost rate or the Engine Start mode.
• OFF – When the switch is in this posi-
tion (middle), the charger is turned off.
• BOOST OR CHARGE/MAINTAIN –
When the switch is in this position, the
Rate Selection button can be set to
either the 6A<>2A Charge/Maintain or
60A Boost.
• ENGINE START – Use this position
for the Engine Start mode. When the
switch is in this position, the Engine
Start LED will illuminate.
