Schumacher Automatic SC-8010A - Manual (Page 8)

• 7 •
Using the Battery Voltage Tester
With the charger unplugged from the AC outlet, connect the charger to the battery 1.
following the instructions given in sections 6 and 7.
Plug the charger AC power cord into the AC outlet, following the instructions given in
2.
section 8.
If necessary, press the BATTERY TYPE button until the correct type is indicated.
3.
Read the voltage on the digital display or press the Display Mode button to set the 4.
tester to BATTERY % to read the voltage as a percent of charge. Compare the
voltage reading to the chart below.
12 Volt Battery Reading Battery Condition
12.8 or More Charged
12.2 to 12.7 Needs Charging
Less than 12.2 Discharged
Tester and Charger: When first turned on, the unit operates only as a tester, not as
a charger. To continue to use it only as a tester, avoid pressing the BATTERY SIZE
button. Selecting a charge rate activates the battery charger and deactivates the tester.
Pressing the BATTERY SIZE button when the ENGINE START LED is lit (except during
the 180 second cool down) will shut off the charger and activate the tester.
Testing After Charging: After the unit has been changed from tester to charger (by
selecting a charge rate), it remains a charger. To change the battery charger back to a
tester, press the Battery Size switch until all battery size LED’s are off.
Tester Status LED’s: When the unit is operating as a battery tester, the status LED’s
light under the following conditions:
The CHARGED LED will light if a charged battery is tested. •
The CHARGING LED does not light in the Battery Test Mode. •
The CONNECTED LED will light if a properly connected battery is detected. •
Using the Alternator Performance Tester
With the charger unplugged from the AC outlet, connect the charger to the battery 1.
following the instructions given in sections 6 and 7.
Plug the charger AC power cord into the AC outlet, following the instructions given in
2.
section 8.
Start the vehicle and turn on the vehicle’s headlights. Read the voltage on the digital
3.
display or press the DISPLAY MODE button to set the tester to ALTERNATOR % to
read the voltage as a percent of charge. Compare the voltage reading to the chart
below.
12 Volt Alternator Reading Alternator Condition
14.6 or More Have it checked
13.5 to 14.5 Working
Less than 13.4 Have it checked
Alternator Testing Note: The DISPLAY MODE cannot be set to ALTERNATOR %
during charging.
CALCULATING CHARGE TIME
12.
Use the following table to more accurately determine the time it will take to bring a
battery to full charge. First, identify where your battery fits into the chart.
CCA = Cold Cranking Amps
RC = Reserve Capacity
Ah = Amp Hour
NR means that the charger setting is NOT RECOMMENDED.