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5. After charging is complete, press the START button to return the unit to Standby Mode, turn off the Master Power
Switch and unplug the charger from the AC power source. Then, disconnect the charger clamp not connected
directly to the battery first and DO NOT allow the clamp to touch anything. Then, disconnect the charger clamp
attached to the battery terminal. (See Connecting To Batteries... at the beginning of this section.)
Stable Power Mode Operation
ATTENTION: Do not plug the charger power cord into the AC power source or set any of the charger’s controls
until told to do so in the following instructions.
ATTENTION: Connect and disconnect DC output clamps only after setting the power switch to the “OFF” position
and unplugging the AC cord from electric outlet. Never allow clamps to touch each other.
ATTENTION: Do not operate the charger in a closed area or restrict ventilation in any way. Ensure that there that
there are no obstructions to the air flow, so the internal fans can properly cool the unit.
Make a proper battery connection (see Connecting to a Battery in a Vehicle Section) and plug AC power cord into
an AC receptacle. Then, turn the master power switch located on the back of the unit to ON. The charger is now in
Standby Mode.
In order to place the unit into Stable Power Mode, toggle the Mode Selection button until the SUPPLY LED is
lit. If an ERROR Indicator LED lights, disconnect from AC stable power immediately and determine the cause of
the alarm. The POLARITY light indicates reverse polarity error connection, while the ERROR light indicates the
detection of a battery fault, such as a shorted connection.
NOTE: Make sure that the vehicle battery is in good condition and fully charged. A compromised battery can
jeopardize your diagnostic or repair efforts.. The unit will not commence the Stable Power mode if the vehicle
battery is below 12.0VDC. Charge the battery first to ensure it has capacity.
1. Choose the desired system voltage level. Using the UP/DOWN arrows in the Stable Power mode voltage control
zone, set the system voltage level on the display to the desired voltage.
2. Press the START button. The charger will bring system voltage to the desired level and hold it at that level,
providing power as needed (60A in 12V mode, 20A in 24V mode) to the vehicle to maintain the desired level. If
you press the START button at any point during the Stable Power sequence, the charger will stop charging and
return to Standby Mode.
3. After the Stable power session is complete, press the START button to return the unit to Standby Mode,
turn off the Master Power Switch and unplug the charger from the AC power source. Then, disconnect the
charger clamp not connected directly to the battery first and DO NOT allow the clamp to touch anything. Then,
disconnect the charger clamp attached to the battery terminal. (See Connecting To Batteries... at the beginning
of this section.)
