Testing the charging system, Battery condition analysis – Harbor Freight Tools 93784 User Manual
Page 6
SKU 93784
For technical questions, please call 1-800-444-3353.
Page 6
Testing the Charging System
Note: The engine should be at normal operating temperature during this test.
1.
Connect the Cable Clamps (A, B) to the battery as previously described.
2.
Outside, or in a well ventilated area, start the vehicle engine and run at fast idle
speed. Never start and run the vehicle’s engine in a closed garage.
WARNING: Avoid Carbon Monoxide poisoning. This gas comes from
the vehicle exhaust and is colorless and odorless. It can cause serious
injury or death if inhaled. Never run the vehicle’s engine inside a
garage or any other enclosed space.
3.
View the Meter Display (D) and read the charging system condition (far right on
the gauge). Refer to the “Battery Condition Analysis” section below.
Caution: DO NOT press the Toggle Switch (C) during this test.
Battery Condition Analysis
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When testing
a 6 V battery,
refer to this
area of the
gauge.
When testing
the charging
system, refer
to this area
of the gauge.
When testing a 12 V battery, refer to
this area of the gauge.