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BT780 Battery Analyzer User’s Guide - English Version_V3.00
3.3 Cranking Test
NOTE
Before starting the test, inspect the alternator drive belt. A belt which is glazed or worn, or lacks
proper tension, will prevent the engine from achieving the rpm levels needed for the test.
After an in-car battery test, the display alternates between the battery test results and the
message PRESS FOR CRANKING TEST displays.
To start cranking test:
1. Press the ENTER button for cranking test.
2. Start the engine when prompted.
3. The tester displays the decision on the starter system, cranking voltage, and cranking time
in seconds. For instance, as below display, the starter system is REPLACE BATTERT,
cranking voltage is 10.76 V, and cranking time in second is 0.86 S.
The starter voltage is normal and the battery is fully charged.
The starter voltage is low and the battery is fully charged.
The starter voltage is low and the battery is discharged. Fully
charge the battery and repeat the starter system test.
Battery must be replaced before the starting system can be
tested.
No vehicle starting detected.
A start was not detected.
4. Press ENTER button to proceed with the charging system test, Print button to print the test
results, BACK button to return to the main menu.
NOTE
For an in-vehicle test, the display alternates between the test results and the message. Press
ENTER for charging test.
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