Reviewing Results - Argus AA300 User Manual

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Weak Cranking Health
If CH is between 50% and 0%, the 'Weak
n
Cranking Health' indication,
(alternating pass / fail symbol) will turn on.
If the battery is used in an application
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sensitive to downtime – the battery should
proactively be replaced now.
If the battery is not in a downtime
n
sensitive application, the battery can
remain in service, but should be tested
frequently. Replacing the battery soon is
recommended.
Good battery, Continue to use
If Cranking Health is above 50%, the
n
icon will turn on. The battery can continue to
be used.
Alternator working,
voltage and ripple OK
After starting the engine, if the alternator
n
is operating at the correct voltage and the
diode ripple is within limits, the
turn on.
Alternator output voltage is shown in the
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main data display.
Alternator not working
If the alternator is not producing adequate
EN n
voltage after cranking the engine, the
alternator failure indicator is turned on.
If the alternator is producing excessive
n
diode ripple after cranking the engine, the
alternator failure indicator is turned on.
Alternator output voltage is shown in the
n
main data display
i
On some vehicles, the alternator output is
managed by a control system. The control
system may not activate immediately after
engine start. If alternator output is not
apparent after engine start, turn on some
accessory loads (air conditioning, cabin
fan, headlights) to activate the alternator
controller, and monitor the alternator icon.
10
If the alternator output is above 15V, the
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REVIEwINg RESuLTS

All test results may be reviewed (or printed,
AA500p only) until the analyzer is disconnected
from the battery. Use the 'enter' button to
move from one test screen to another. Use
the 'browse' buttons to view different results
within a test screen.
To print a test report (AA500p with connected
printer only) change to the 'SoC' screen and
press the > button.
Each test is distinct and analyzes a different
aspect of the battery. Results are not shared
from one test to another. It is not uncommon
for one test to indicate a battery failure and
another test to pass the battery. Your decision
icon will
to replace a battery should be based on how
the battery is used.
When testing starting batteries, the
combination of Cranking Health and Battery
Life test results can be used to help identify
other battery and system problems. See the
table on the following page.
Alternator Overcharge
overcharge indicator will turn on. The
voltage regulator in the alternator should be
tested. Chronic overcharge of the battery
can cause premature battery failure.