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• 7 •
10. CONTROL PANEL
DIGITAL DISPLAY
The digital display indicates the status of
the battery and charger. See the Display
Messages section for a complete list of
messages.
NOTE: During charging, the display will
go into sleep mode and will not show the
battery percentage, alternator percentage
or voltage. To turn the display back on,
press the Display button.
DISPLAY MODE BUTTON
Use this button to set the function of the
digital display to one of the following:
(Battery %) – The digital display
shows an estimated charge percentage
of the battery connected to the charger’s
battery clamps, when charging.
A (Alternator %) – The digital display
shows an estimated output percentage of
the vehicle’s charging system connected
to the charger’s battery clamps, compared
to a properly functioning system. The
alternator percent range is from 0 to 100%.
Readings below 0 (13.2 volts) will read
LOW and readings above 100% (14.6
volts) will read HI.GH. If you get a HI.GH or
LOW reading, have the electrical system
checked by a qualied technician.
NOTE: The “A” selection is not available for
24V batteries.
V (Voltage) – The Digital Display shows
the voltage at the charger battery clamps,
in DC volts.
START/STOP BUTTON
Use this button to start or stop the
charging or boosting process, after the
battery is properly connected and an
output or rate has been selected.
RATE SELECTION BUTTON
Use this button to select one of the following:
6<>2A CHARGE/MAINTAIN
(12V only) – For charging small and large
batteries. Not recommended for industrial
applications.
40A/12V or 20A (24V) BOOST –
For quickly adding energy to a severely
discharged or large capacity battery prior
to ENGINE START.
250A/12V or 125A/24V
ENGINE START – Provides high
amperage 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
START/STOP button, the output current is
shut off and the display will show OFF and
then the battery voltage. If you press the
START/STOP button again, the current will
go back on at the same setting it was when
it was turned off.
LED INDICATORS
REVERSED CLAMPS (red) LED
ashing: The connections are reversed.
(yellow/orange) LED lit:
The charger has detected that a battery is
connected, and is performing the selected
operation.
CHARGED/MAINTAINING (green)
LED lit: The battery is fully charged and
the charger is in maintain mode.
NOTE: See Operating Instructions for a
complete description of the charger modes.
BATTERY TYPE BUTTON
Use this button to set the type of battery.
STD – Used in cars, trucks and
motorcycles, these batteries have vent caps
and are often marked “low maintenance” 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
somewhat different material composition.
Standard batteries should not be used for
deep-cycle applications.
AGM – The Absorbed Glass Mat
construction allows the electrolyte to be
suspended in close proximity with the
plate’s active material. In theory, this
enhances both the discharge and recharge
efciency. The AGM batteries 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 applications. If the wrong
battery charger is used on a gel cell
battery, poor performance and premature
failure will result.
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