Schumacher SC-8020A Battery Charger User Manual


 
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DIGITAL DISPLAY BUTTON 12.1
Use this button to set the function of the digital display to one of the follow-

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 bat-
tery clamps as compared to a properly functioning system.
BATTERY TYPE BUTTON 12.2
Use this button to set the type of battery to be charged to one of the fol-
lowing.
12V STANDARD:• 
and motorcycles. These batteries have vent caps and are often marked
“low maintenance” or “maintenance-free.”
12V AGM: • AGM batteries have sealed cases without vent caps. Such

12V GEL CELL:• Gel Cell batteries have sealed cases without vent caps.
Such batteries are often smaller than the other types.
Batteries should be marked with their type. If charging a battery that is not

AGM setting. Make sure the battery com-
plies with the safety instructions in section 2.
BATTERY SIZE BUTTON 12.3

SMALL BATTERY:• Provides a charge rate of up to 2A. Intended for
charging small batteries such as those commonly used in garden trac-

used as a trickle charger for larger batteries.
MEDIUM TO LARGE BATTERY:• Automatically switches between 10 and

for charging medium to large capacity batteries. Not intended for indus-
trial applications.
ENGINE START: • Provides 80 amps for cranking an engine with a weak
or run down battery. Always use in combination with a battery.
OFF:• -
.