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Alternator Check
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. Set up the unit as described in the “Setting Up the Unit” section.
2. When the STANDBY message displays on the LCD, press the Alternator Check button on the Control Panel to
start the process. The LCD shows ALTERNATOR CHECK to indicate the unit is analyzing the alternator.
3. Once the unit has finished checking, the LCD will display either ALTERNATOR VOLTAGE GOOD or
ALTERNATOR VOLTAGE BAD.
4. Press Alternator Check again to stop the test. The unit will automatically return to the standby mode and the
LCD screen will display “STANDBY”.
PART 2
Under Load (Accessories ON):
Next, load the alternator by turning on as many accessories as possible
(except for A/C and DEFROST) and repeat the above four steps.
After completing both alternator checks, turn the unit off by pressing the Alternator Check button again.
STANDBY will display on the LCD and the unit will be in Standby Mode.
Disconnect the charger from the battery, taking the following steps in order: a) disconnect the AC plug
from the AC outlet; b) remove the clamp from the vehicle chassis; then c) remove the clamp from
the battery terminal. Observe the “Important Safety Instructions” at the front of this manual when
disconnecting.
If the first alternator check indicates a good alternator and the second indicates the alternator is not
good, the problem could stem from: loose fan belts, an intermittent diode failure or possibly bad
connections between the battery and alternator and/or ground.
ALTERNATOR BAD may display 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.
Note:
All buttons except the Alternator Check Button are disabled in alternator check mode.
This check may not be accurate for every make, manufacturer and model of vehicle.
Check only 12 volt systems.
Standby Mode
Always place the unit in Standby Mode before disconnecting the AC cord and clamps (see individual
functions for directions).
Placing the unit in Standby Mode does NOT turn the unit off. If left connected to a battery in Standby
Mode, the unit will automatically turn on again in approximately 1 minute. The AC cord and clamps
must be disconnected to turn the unit off.
TROUBLESHOOTING
Display Indications Common Problems/Possible Solutions
REVERSE POLARITY
(displays
and the unit beeps once)
The connections to the battery’s positive and negative terminals
are incorrect. Observing the “Important Safety Instructions” at
the front of this manual, disconnect AC cord and clamps and
reconnect to battery with correct polarity.
INTERNAL OPEN CELL OR
SULFATED CONDITION
The battery being charged either has an internal open cell or
is highly sulfated and cannot accept normal charge current.
•Follow the steps in “Reconditioning the Battery” to recondition
the battery.
•If the situation persists after reconditioning, we recommend
taking your battery to a certified automotive service center for
evaluation.
INTERNAL SHORTED CELL
BATTERY
The battery being charged has an internal shorted cell and
cannot accept normal charge current. We recommend taking
your battery to a certified automotive service center for
evaluation.
3. To check the battery voltage in Charging mode, press the charge button on the control panel, then press
the Battery Voltage button. The LCD screen will display the current voltage of the connected battery for
10 seconds. Press the battery voltage check button again to return the unit to return the unit to Charging
mode. Pressing any other buttons will have no effect. The unit will also automatically return to Charging
mode after 10 seconds.
4. Disconnect the charger from the battery, taking the following steps in order: a) disconnect the AC plug from
the AC outlet; b) remove the clamp from the vehicle chassis; then c) remove the clamp from the battery
terminal. Observe the “Important Safety Instructions” at the front of this manual when disconnecting.
Engine Start
The Engine Start function can supply up to 75 amps for engine starting.
1. Set up the unit as described in the “Setting Up the Unit” section.
2. When LCD displays STANDBY, first press the Charge button on the control panel, then press the Engine Start
button.
3. The LCD will show a 90-second count down (90 SECONDS), then READY TO START ENGINE will display. The
vehicle is ready to start.
4. Crank the engine using manufacturer’s guidelines, typically in 3 to 5 second bursts. The LCD displays
STARTING.
Note:
The high current engine starting function requires a resting/cooling period between tries. The LCD screen displays
the scrolling message “COOL DOWN WAIT 5 MINUTES”. The unit automatically adjusts the charging current
to 2-3A and does not allow operation in Engine Start mode for 5 minutes. After 5 minutes, the unit reverts to
charging mode.
If a second attempt at starting the engine is needed, wait until after the 5-minute cooling period has elapsed then
repeat steps 2 through 4.
5. After the engine starts, press the Charge button. STANDBY will display on the LCD and the unit will be in
Standby Mode.
6. Disconnect the charger from the battery, taking the following steps in order: a) disconnect the AC plug from
the AC outlet; b) remove the clamp from the vehicle chassis; then c) remove the clamp from the battery
terminal. Observe the “Important Safety Instructions” at the front of this manual when disconnecting.
Reconditioning the Battery
Whenever a lead-acid battery begins to discharge, lead sulfate, an insulator, begins to build up on the
battery’s internal plates. This reduces the ability of the battery to hold a full charge. When that battery has
an immediate charge, most of the lead sulfate is dissolved and the plates are free of this insulation. If a
battery remains in a discharged condition over a longer period of time, the lead sulfate changes to a hard
crystalline form, making a full charge difficult to achieve. Reconditioning may “save” a sulfated battery.
Battery Recondition Mode should only be used with 10 Amp Hour (Ah) or larger capacity lead-acid
batteries. Charge the battery to be treated for 20 minutes (as outlined in the “Charging the Battery”
section), before using Recondition Mode. Observe the Digital Display for any Fault Condition messages.
This initial charge will check the battery for shorted cells, open cells or battery too low to accept a
charge, and to ensure the battery can take a charge.
CAUTION:
Remove or disconnect the vehicle’s battery when reconditioning.
1. When the STANDBY message displays on the LCD, press the Battery Recond. button on the Control Panel to
start the process.
2. RECONDITIONING BATTERY shows on the LCD display.
3. The process takes 24 hours and stops automatically. The display shows “RECONDITIONING CYCLE
COMPLETED” when the process is complete.
To interrupt the reconditioning process, press the Recondition button again. STANDBY will display on the LCD
and the unit will be in Standby Mode.
4. Disconnect the charger from the battery, taking the following steps in order: a) disconnect the AC plug from
the AC outlet; b) remove the clamp from the vehicle chassis; then c) remove the clamp from the battery
terminal. Observe the “Important Safety Instructions” at the front of this manual when disconnecting.
Notes:
All buttons except the Battery Recondition Button are disabled in battery recondition mode.
If five cycles of reconditioning do not improve battery performance, discontinue and recycle the battery.
CBC25E_CBC25ECA_ManualENFRSP_090613.indd 8-9 9/6/2013 11:57:28 AM
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