Calculating Charge Time - Schumacher Electric SCF-8020A Guide D'utilisation

BATTERY TESTER STATUS LEDS
When the unit is operating as a battery
tester, the status LEDs 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.
• When the tester's digital display is set to
voltage, the CHARGED and CHARGING
LEDs will not light.
INITIAL PERCENT CALCULATION
When BATTERY % is calculated for the
first time after connecting a battery, the
digital display will show three dashes
(---) for a few seconds, while the tester
analyzes the battery.
NOTE: The battery tester is only designed
to test batteries. Testing a device with
a rapidly changing voltage could yield
unexpected or inaccurate results.
USING THE ALTERNATOR
PERFORMANCE TESTER
1. With the charger unplugged from the
AC outlet, connect the charger to
the battery, following the instructions
given in previous sections.
2. Plug the charger AC power cord into
the AC outlet.
3. Start the vehicle and turn on the
vehicle's headlights. Read the voltage
on the digital display or press the
DISPLAY MODE button to set the
tester to ALTERNATOR % to read

12. CALCULATING CHARGE TIME

Use the following table to more accurately
determine the time it will take to bring a
battery to full charge.
CCA = Cold Cranking Amps
RC = Reserve Capacity
Ah = Amp Hour
NR = Not Recommended
BATTERY SIZE/RATING
SMALL
BATTERIES garden tractor, etc.
CARS/
TRUCKS
550-1000 CCA
MARINE/DEEP-CYCLE
All manuals and user guides at all-guides.com
6-12 Ah
Motorcycle,
12-32 Ah
200-315 CCA 40-60 RC
315-550 CCA 60-85 RC
85-190 RC
80 RC
140 RC
160 RC
180 RC
• 10 •
the voltage as a percent of charge.
Compare the voltage reading to the
following chart.
12V
Alternator
Reading
14.6 or higher Have it checked
13.5 to 14.5
Below 13.4 Have it checked
ALTERNATOR TESTER STATUS LEDS
When the unit is operating as an
alternator tester, the status LEDs light
under the following conditions:
• The CHARGED LED will light if the
output of the charging system is at the
normally desired level.
• The CHARGING LED does not light in
the alternator test mode.
• The CONNECTED LED lights if the
tester detects a connection.
• When the tester's digital display is set to
voltage, the CHARGED and CHARGING
LEDs will not light.
ALTERNATOR TESTING NOTES
• The alternator percent display can range
from zero to 199.
• The digital display cannot be set to
Alternator % during charging.
• An Alternator % of zero does not indicate
an Alternator output of zero volts; it
indicates an output too low to charge
the battery.
• An Alternator % of 199 does not indicate
an Alternator Voltage nearly twice the
voltage of a normal alternator.
Find your battery's rating on the chart
below, and note the charge time given
for each charger setting. The times given
are for batteries with a 50% charge prior
to recharging. Add more time for severely
discharged batteries.
CHARGE RATE/CHARGING TIME
2 AMP 10 AMP
2-3¾ h NR
3¾-10 h NR
11¼-14½ h 2¼-3 h
14½-18¼ h 3-3¾ h
18¼-34¾ h 3¾-7 h
17½ h 3½ h
27 h 5½ h
30 h 6 h
33 h 6½ h
Alternator
Condition
Working
20 AMP
NR
NR
1-1½ h
1½-2 h
2-3½ h
1¾ h
2¾ h
3 h
3¼ h