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• 8 •
DISPLAY 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.
Alternator % (12V only, when not charging) – 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 LO and readings above 100%
(14.6 volts) will read HI. If you get a HI or LO reading, have the electrical
system checked by a qualied 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 following:
CHARGE/MAINTAIN – For charging small and large batteries. Not recommended for industrial
applications.
BOOST – Increases the voltage and sends a quick burst of energy into the battery, to quickly bring
deeply discharged batteries back to life. NOTE: Boost mode, once begun, will stay energized until the
Start/Stop button is pressed.
ENGINE START – Provides additional amps for cranking an engine with a weak or run-down battery.
Always use in combination with a battery.
START/STOP BUTTON
Press to immediately begin charging your properly connected battery. If the button is not pressed,
charging should begin automatically in 30 seconds.
LED INDICATORS
CHARGING (yellow/orange) LED lit: The charger is charging the battery.
CHARGED/MAINTAINING (green) LED lit: The battery is fully charged and the charger is in maintain mode.
NOTE: The display and all other LEDs will be off when this LED is lit, to conserve energy.
CLAMPS REVERSED/BAD BATTERY (red) LED ashing: The connections are reversed.
CLAMPS REVERSED/BAD BATTERY (red) LED lit: The charger has detected a problem with the battery.
See Troubleshooting for more information.
NOTE: See Operating Instructions for a complete description of the charger modes.
BATTERY TYPE BUTTON
Use this button to select the type of battery.
STANDARD – 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.
RECOVERY – This rate uses a unique recovery algorithm to recover a sulfated battery. The display will
show “REC” for the entire recovery/charge/maintain cycle until this option is deselected by the user. The
battery %, amperage and voltage will not be shown.
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