Good weak bad, 12v battery 6v battery, Load switch – Actron KAL4780 User Manual
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3. Press and hold the LOAD SWITCH for
10 seconds. Refer to Figure 4.
4. Observe the voltage on the LCD and
note the value. Release the LOAD
SWITCH immediately after reading the
display.
5. Disconnect the Red clamp from the bat-
tery and then the Black clamp.
6. Figure 5 shows the range for a 500 CCA
(Cold-Cranking Amperage) battery
tested at 70°F (21.1°C). For batteries
rated at other CCA values, subtract 0.1V
for every 100 CCA below 500 CCA from
the values shown in Figure 5. Add 0.1V
for every 100 CCA above 500 CCA.
If the voltage is in the WEAK region, then
the battery is probably discharged and
needs to be charged before testing.
Disconnect tester and charge battery;
follow battery charger manufacturers
instructions for charging procedures.
WARNING!
Charging a battery with a bad cell may cause severe personal injury and dam-
age to vehicle and/or equipment.
Disconnect charger, reconnect tester and retest. If the voltage remains low,
then the battery is not accepting a charge and should be replaced.
Test Results
GOOD - means the battery is in
good condition and should start
the vehicle in any environment.
WEAK - Indicates the battery is
discharged and requires charg-
ing. Charge battery and then re-
test.
If battery tests WEAK a sec-
ond time, this could indicate
one or more cells are bad
and battery must be re-
placed.
If battery reads GOOD, the
battery was not sufficiently
charged during the first test.
BAD - Indicates the battery is deeply discharged and requires a complete charge
or the battery is bad and requires replacement. Check the following (on page 6)
and retest.
Test Time: 10 seconds
Max Time: 15 seconds
Digital 130 Amp Batte
ry Load/Alternator Teste
r
Load Switch
12.85
Load Switch
Figure 4 Load Switch and Display
Figure 5 500 CCA Test Results at 70°F (21.1°C)
GOOD
WEAK
BAD
10.00V
6.10V
3.05V
5.00V
12V Battery
6V Battery