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5. Position yourself and the free end of the cable (attached to the NEG battery terminal) as far away from
the battery as the cable will allow. Then, WHILE FACING AWAY FROM THE BATTERY, connect the
NEGATIVE charger clamp to the free end of the cable.
6. When disconnecting charger, turn switches to off, disconnect AC cord and disconnect charger, always
in reverse sequence of connecting procedure and break first connection while as far away from battery
as practical.
Charging 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: Verify output cable connectors are properly seated and locked in place.
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.
Upon checking that your output cables are properly seated and locked into the unit, make a proper battery
connection (see Connecting to a Battery Sections as applicable) 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 Charging Mode, toggle the Mode Selection button until the CHARGE LED is lit. If an
ERROR Indicator LED lights, disconnect from AC power supply 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: If the the unit is idle for more than 10 minutes, it will enter low power consumption mode, indicated by
only the MODE selection LED being lit. Any button press will wake the display up to enable the operator to set the
necessary application parameters.
1. Choose a charging operating voltage setting, 12 Volt or 24 Volt that properly matches the operating voltage of
the battery(ies)/equipment to be charged.
2. Choose a battery type setting. To charge Standard and Maintenance Free Flooded Acid batteries, push the
Battery Type button until the "STD" LED is lit. To charge AGM and Spiral Wound batteries, push the Battery
Type button until the "AGM" LED is lit. To charge Lithium Iron Phosphate (LFP or LiFePO4 lithium) batteries,
push the Battery Type button until the "LiFePO4" LED is lit.
NOTE: For safety reasons, you may not charge a lithium battery if the ambient temperature is under 32°F (0°C)
or over 122°F (50°C).
WARNING: When charging lithium batteries, please note that there are many different lithium battery
chemistries. The Lithium charging setting on this charger is specifically for Lithium Iron Phosphate (LiFeP04
) batteries and only these lithium batteries. The charger should never be used for charging any other lithium
battery type.
3. Choose a battery charging rate. Please see Choosing a Charge Rate section for general details related to
choosing a charging rate for your application.
4. Press the START button and the CHARGING indicator LED will light. The charger will automatically
commence and complete the charging process. If you press the START button at any point during the
charging sequence, the charger will stop charging and return to Standby Mode.
NOTE: If the ERROR LED lights, disconnect from AC power immediately and determine the cause of the
issue.
NOTE: The charger is designed to protect against faults and shorts (see Battery Charger Features). If the
battery to be charged has a open circuit voltage of less than 1V, the charger will indicate a fault. If, after
unplugging unit, checking connections and verifying all settings, you determine the problem causing the
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