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10. CONTROL PANEL
DIGITAL DISPLAY
The Digital Display gives digital indication of voltage, % of charge or current in amps. It also gives Cool
Down time remaining during Engine Start. When chosen by the Display Button, the display will show the
battery voltage, % of charge or current in amps under certain conditions. First, when connected to a battery
but not charging, all options but current in amps are available. When charging begins, the display will
automatically change to the Voltage option, show
On
to indicate charging has started, and then either 6 or
12, the voltage type of the battery determined by the charger. If the battery voltage is low, the display will
continue to show
On
until the voltage type is determined. % of charge is an option only after the voltage
type, 6 or 12 is determined, and also only for the Charge rate. The Amps option is available anytime during
charging. When the battery is fully charged, indicated by the Charged/Maintaining (green) LED lit, the
display and all other LEDs will turn off to conserve energy during Maintain mode.
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.
(Amps) – The display shows the output current, in amps.
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 rates:
6<>2A Charge/Maintain – For charging small and large batteries. Not recommended for industrial
applications.
40A Boost – For quickly adding energy to a severely discharged or large capacity battery prior to
Engine Start.
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.
BAD BATTERY (red) LED lit: The charger has detected a problem with the battery. See Troubleshooting
for more information.
CLAMPS REVERSED (red) LED flashing: The connections are reversed.
NOTE: See Operating Instructions for a complete description of the charger modes.
BATTERY TYPE BUTTON
Use this button to select the type of battery.
– 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.
– 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 efficiency. 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.
– 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 applications 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.
