CGDI BD006 Manual: Battery, Cranking, Charging & Voltage Tests

The CGDI BD006 Car Battery Tester uses conductance testing technology to quickly measure a starting battery’s cold-cranking capability and state of health (SOH). This manual covers four main functions: Battery Test, Cranking Test, Charging Test, and Voltage Acquisition.

Battery Test

The CGDI BD006 Battery Test function is for 12V lead-acid batteries.

Before Testing

Before testing in the vehicle:

Turn off all accessory loads.
Remove the key from the ignition.
Close the doors.
If the vehicle was running, turn on the headlights to discharge the battery’s surface charge.
Let the battery rest for at least 1 minute before testing.

Test Procedure

Select BATTERY and press [Enter].
Select the battery type and press [Enter]. Check the battery label for the type.
Select the battery standard and press [Enter]. Check the battery label for the standard.
Enter the CCA with the ▲/▼ keys, then press [Enter] to start the test.

Short-press ▲/▼ to change the value by 5.
Press and hold ▲/▼ to change the value continuously.

The test result appears on the display.

Battery Test Results

Result	Meaning
Good Battery	Battery condition is good.
Good Charging	Battery condition is good. Charge the battery.
Replace	Replace the battery.
Retest After Charging	Charge the battery and test again.

Battery Test Terminology

Term	Description
Health (SOH)	Battery condition compared with a new battery, considering cell aging.
Charge (SOC)	Remaining battery charge compared with its maximum available charge.
Internal R (Internal Resistance)	Resistance to current flow in the cells and battery. It is affected by electronic and ionic resistance.
Rated	The CCA entered in the previous step, based on the CCA shown on the battery label. The difference between rated and actual CCA affects the test result.

Cranking Test

The Cranking Test supports 12V and 24V lead-acid batteries.

Before Testing

Turn off the engine and all accessory loads before testing.

Test Procedure

Select CRANK and press [Enter].
Follow the on-screen prompt and crank the engine.
The result appears on the screen, including cranking time and cranking voltage.

Cranking Test Results

Cranking Time: Time required to start the engine.

Cranking Voltage: Battery voltage while the engine is starting.

The result is typically:

Cranking Low • Normal • Good

Charging Test

The Charging Test supports 12V and 24V lead-acid batteries.

Before Testing

Start the engine before performing the charging test.

Test Procedure

Select CHARGE from the home screen and press [Enter].
Confirm that the engine is running and press [Enter].
The tester performs a ripple test. The result appears as a graph. After 10 seconds, it moves to the next step.
Turn off loads such as the headlights and blower motor. Press [Enter].
Increase the engine speed to 2500 RPM. Press [Enter].
Release the throttle. Press [Enter].
The charging test result appears on the display.