Actron KAL4780 - Manual (Page 6)

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• Battery clamps are securely fastened to the terminals.
• Terminals are clean and free of debris for a good electrical continuity.
• If a side-post type battery is being tested, verify the terminal stud adapters are
screwed in tightly.
If no fault is detected, then charge battery and retest before replacing the battery.
If tester still indicates a bad battery, then replacement is required.
NOTE: A WEAK or BAD indication may be due to excessive resistance
caused by a bad connection or corrosion between battery cables and the
battery posts. Remove battery cables from battery, connect the tester directly
to the posts and retest.
Starting Test
This test evaluates the vehicle’s starting system by measuring the battery voltage
while cranking the engine.
1. While observing polarity, connect the tester across the vehicle’s battery posts:
Red to positive (+), Black to negative (-). Refer to Figure 6.
2. Disable the ignition system to prevent the vehicle from starting. Refer to a
vehicle service manual if necessary.
Figure 6 Starting Test and Charging Test Setup