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SHORTED CELL TESTS
Description Of Tests
The diagnostic test sequence includes a shorted cell test that may run
as long as 12 minutes. During this test, charging power is applied in a
series of pulses with voltage stabilization and test periods between
pulse applications.
The LCD display will indicate error code E2 if the battery fails this test.
The remaining diagnostic tests are performed if the battery passes this
test.
Sc Test Operation
• Apply power to the PowerCenter from one of the recommended
power sources.
• Insert an Intelligent Battery into the PowerCenter.
• Communication is established with the battery.
• If a low battery voltage is detected:
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The LCD display shows “Sc” to indicate the test is in progress.
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Charge current is applied to the battery.
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The battery voltage is allowed to stabilize.
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Battery voltage is measured and compared to the minimum for a
battery with no shorted cells.
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These tests may continue for as long as 12 minutes.
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If the battery voltage increases and stays above the minimum
level, the shorted cell test is passed and the remaining
diagnostic tests are run.
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If the voltage does not increase to the required level, it is
concluded that one or more cells in the battery are shorted and
the error code 'E2' is displayed.
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The user should remove the battery from the PowerCenter and
label it as failed. Return defective batteries to Apple, your dealer
or other authorized collection points for recycling or diposal.
