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9. Battery Test - Only for AL539b
Comparing with the basic AL539, AL539b can perform one more
function ---- battery test.
This function provides quick and accurate load-free testing of most
types
of
maintenance-free batteries.
NOTE: Do not connect the battery test cable to a voltage source
greater than 30V.
TEST PROCEDURE
Follow the steps to complete the test:
1.
Make sure all vehicle electrical loads are off and the ignition is
in the OFF position.
2.
Connect the scan tool to the battery terminals with battery test
cable: red to positive (+) terminal, black to negative (-) terminal.
Rock each clamp back and forth to make a good connection.
3.
Turn on the scan tool and wait for the main screen to appear.
12V
batteries,
including
Figure 9.1
85
AGM,
standard,
and
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