Battery Chargers
1-877-571-2391
12
Battery Chargers
1-877-571-2391
13
PART 2
Under Load (accessories ON):
Next, load the alternator by turning on as many accessories as
possible (except for A/C and Defrost).
1. Press the alternator check button to start the check. The LCD screen will display the following to
indicate the unit is analyzing the alternator:
The alternator icon will flash.
2. If the unit detects that the alternator is good, the LCD screen will display the following:
The alternator icon and “ALT GOOD” will light solid.
3. If the unit detects that the alternator is out of typical voltage range, the LCD screen will display
the following:
The fault icon will flash. The alternator icon and “CHECK ALT” will light solid.
4. Press the alternator check button again to stop the test.
Notes:
All buttons except the alternator check button are disabled in alternator check mode.
The unit may detect that the alternator is out of typical voltage range because someone has added a
number of accessory loads on the charging system, thereby increasing current demand from the
alternator. MAKE SURE THAT THE ALTERNATOR IS RATED TO SUPPORT THE APPLICATION.
This check may not be accurate for every make, manufacturer and model of vehicle. Check only 12
volt systems.
When disconnecting the charger, disconnect AC cord, remove clamp from vehicle chassis, and then
remove clamp from battery terminal.
Using the Alternator Check Function
Set up the battery charger and connect to the battery following steps 1 through 2 in the “Charging the
Battery” section.
PART 1
No Load (turn OFF all vehicle’s accessories):
The battery must be fully charged before testing
the alternator. Run the engine long enough to achieve normal idle speed and verify there is a no-load
voltage.
1. Press the alternator check button to start the check. The LCD screen will display the following to
indicate the unit is analyzing the alternator:
The alternator icon will flash.
2. If the unit detects that the alternator is good, the LCD screen will display the following:
The alternator icon and “ALT GOOD” will light solid.
3. If the unit detects that the alternator is out of typical voltage range, the LCD screen will display
the following:
The fault icon will flash. The alternator icon and “CHECK ALT” will light solid.
4. Press the alternator check button again to stop the test.
BC15_30_40BWM_ManualEN_120513.indd 12-13
12/5/2013 3:53:06 PM
