Cranking Test:
Press the ENTER button for cranking test.  Start the engine when prompted.  The tester displays the decision on the starter system, cranking voltage, and cranking time in seconds.  Press ENTER button to proceed with the charging system test, Print button to print the test.
NOTE: Before starting the test, inspect the alternator drive belt.  A belt that is glazed or worn, or lacks the 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.

Cranking Test Results:
CRANKING NORMAL: The starter voltage is normal and the battery is fully charged.
LOW VOLTAGE: The starter voltage is low and the battery is fully charged.
CHARGE BATTERY: The starter voltage is low and the battery is discharged.  Fully charge the battery and repeat the starter system test.
REPLACE BATTERY: Battery must be replaced before the starting system can be tested.
NO START: No vehicle start detected.
CRANKING SKIPPED: A start was not detected.

Charging System Test
Once you have completed an in-vehicle test, the display alternates between the battery test results and the message press ENTER for charging test.  Press ENTER to proceed with the charging test.  Follow the on-screen prompts to Rev the engine.  Turn on high beams headlights and the blower fan.  Rev engine with loads on.  Idle engine and turn off loads.  The Charging System decision is displayed at the end of the procedure.

Charging System Test Results:
NO PROBLEMS: System is showing normal output from the alternator.
NO OUTPUT: No alternator output detected.  Check all connections to and from the alternator, especially the connection to the battery.  If the connection is loose or heavily corroded, clean or replace the cable and retest.  If the belts and connections are in good working condition, replace the alternator.  (Older vehicles use external voltage regulators, which may require only replacement of the voltage regulator.)
LOW OUTPUT: Alternator not providing sufficient to power the system's electrical loads and charge the battery.  Check the belts to ensure the alternator is rotating with the engine running.  Replace broken or slipping belts and retest.  Check the connections from the alternator to the battery.  If the connection is loose or heavily corroded, clean or reparable the cable and retest.
HIGH OUTPUT: Alternator voltage output exceeds the normal limits.  Make sure there are no loose connections and the ground connection is normal.  If there are no connection problems, replace the regulator.  Most alternators have a built-in regulator that requires replacing the alternator.  In older vehicles that use external voltage regulators, you may need to replace only the voltage regulator.
EXCESSIVE RIPPLE: Excessive AC ripple detected.  One or more diodes in the alternator are not functioning or there is stator damage. Charging System Test

Multi-languages & Lifetime Free Update

FOXWELL BT780 Support Languages: 
English, Dutch, French,German, Hungarian, Japanese, Korean, Portuguese, Russian and Spanish
 
FOXWELL BT780 Update Steps:
Power on the battery tester and find FORMAT CARD on the main menu.
Remove TF card from the tester and connect it to computer via card reader in the case.
Download BT780_Firmware_V... from Foxwell website(old and new are all allowed).
Put TF card back to the analyzer, and select FIRWARE UPDATE from the Main menu.
Input 1234 and click Enter button. After the tester restart automatically, the software is updated successfully