2. Operation
1) Real-Time Voltage
Click once to enter detail interface
1
Battery Real-time Voltage
2
Cranking Voltage
3
Battery Level
4
Battery Voltage
5
Cranking Test
11
System Setting
10
Battery Age
9
Find More
8
Voltage Curve
7
Trip Record
6
Charging Test
All specifications and figures are subject to change without notice. Printed in China 2019.06 Version: 1.0 7504-1157-01
4) Trip Time Recorder
App automatically determines travel time, start
and end times. (Please Note: the trip log is for
reference only, many factors can affect the
accuracy of the trip recorder.)
3) Charging Test (Alternator)
Alternator is used to recharge your car battery used to run your car’s electrical system.
You should test your alternator to ensure it is in perfect working condition.
The easiest way to test the alternator is by using this device. Follow the instructions on
the App to do the test.
6
Charging Test:
This tests the charging system manually.
7
Trip Record:
Records each start time, stopping time
and driving time of the vehicle.
8
Voltage Curve:
Shows the voltage curve of battery.
9
Find More:
Detailed voltage curve.
10
Battery Age:
Shows the age of the battery.
11
System Setting:
Select to enter system setting.
1
Battery Real-time Voltage
Shows Battery Real-time Voltage
2
Cranking Voltage:
The voltage the battery drops to
during starting or cranking the engine.
For a 12 Volts system you may see a
drop from 7.5 to 11 Volts.
3
Battery Level:
Shows battery status of capacity
4
Battery Voltage:
Displays current battery voltage.
5
Cranking Test:
Cranking test: this is done
automatically on start up.
2) Cranking Test
Everytime you start the engine, the device
will test the cranking system automatically
and store the test result. If the cranking
voltage is below 7.5V, it means abnormality
has been detected. It might be time to
replace the battery. Have your vehicle’s
battery checked.
OR018906 - BM888 Battery Monitor User Guide_03-11-20.indd 2
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