Craftsman 71321 Manual De Usuario

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DIGITAL DISPLAY
The digital display indicates the status of the battery and charger. See the 

troubleshooting section for a complete list of messages.
NOTE: During charging, the display will go into sleep mode and will not 

display any messages. To turn the display back on, press the display button.
DISPLAY BUTTON
The digital display will show the battery’s voltage and percentage of charge. 

Press the display button to show the charge progress.
LED DISPLAY
GREEN LED solid (CHARGING): The charger is charging the battery.
GREEN LED pulsing (CHARGED/MAINTAINING): The battery is fully 

charged and the charger is in maintain mode.
GREEN LED flashing: The charge has aborted (see Aborted Charge section).

IMPORTANT: Do not start the vehicle with the charger connected to the AC 

outlet, or it may damage the charger and your vehicle.
NOTE: This charger is equipped with an auto-start feature. Current will not 

be supplied to the battery clamps until a battery is properly connected. The 

clamps will not spark if touched together. 
CHARGING A BATTERY IN THE VEHICLE

1.  Turn off all the vehicle’s accessories.

2.  Keep the hood open.

3.  Clean the battery terminals.

4.  Place the charger on a dry, non-flammable surface, or use the convenient 

hook attachment to hang the unit safely outside the work area.

5.  Lay the AC/DC cables away from any fan blades, belts, pulleys and other 

moving parts.

6.  For a negative-ground vehicle (as in most vehicles), connect the 

charger’s POSITIVE (RED) clamp to the POSITIVE (POS, P, +) battery 

post. Next, connect the charger’s NEGATIVE (BLACK) clamp to the 

vehicle chassis or engine block, away from the battery.

7.  For a positive-ground vehicle, connect the charger’s NEGATIVE (BLACK) 

clamp to the NEGATIVE (NEG, N, -) battery post. Next, connect the 

charger’s POSITIVE (RED) clamp to the vehicle chassis or engine block 

away from the battery. NEVER connect any clamps to the carburetor, fuel 

lines or sheet-metal body parts.