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Page 7SKU 03418 For technical questions, please call 1-800-444-3353.
Operation (continued)
Preparing the Battery
1. If necessary, remove the battery from the vehicle to charge it. When removing the battery,
always remove the grounded battery cable first.
Reminder: The vehicle’s engine must be OFF when removing, replacing, or charging a battery.
2. If necessary, add distilled water to the battery cells before charging. Read and follow
the battery manufacturer’s instruction manual. Never add water to a battery while attached
to a charger, or in close proximity to the charger. Do not overfill.
3. Clean battery terminals.
4. Check the battery manufacturer’s instructions on whether or not to have the cell caps
on when charging. If not stated, leave the cell caps on.
5. Determine the battery voltage from the battery or the manufacturer’s manual.
Operation Instructions
Warning! Read and understand all of the safety instructions in this manual before operating
the charger.
Warning!! If the Reverse Connect light (See FIGURE 1 on page 6) ever lights, immediately
unplug the charger and reconnect the clamps to the battery to alleviate the problem.
Connection to a battery installed in a vehicle.
Warning! The vehicle’s engine must be OFF during the entire charging process. Always read
and adhere to all the safety warnings and instructions provided in the vehicle’s manual.
1. Make sure the AC Power Cord (#3) is not plugged in.
2. Set up the charger on a flat, dry surface that allows you to position the Power Cord (#3)
and the clamp cords where they won’t be damaged by the vehicle doors, hood, or
sharp engine parts.
Note: Most vehicles are negative-grounded vehicles. Number 3 below instructs setup for
the most common negative-grounded vehicles. Number 4 below addresses the less
common positive-grounded vehicles. If you are not sure about your vehicle, check the
vehicle’s instruction manual or talk to the a qualified service technician.
3. Negative-grounded vehicles: The battery will have two terminals. One should be
marked POSITIVE, POS, P, OR +. The Negative terminal should be marked NEGATIVE,
NEG, N, OR -. Connect the red Clamp (#2) to the positive (ungrounded) terminal of the
battery. Connect the black Clamp (#2) to a heavy gauge metal part of your vehicle
chassis or engine block away from the battery. Do not connect to the black Clamp (#2)
to the Negative (black) terminal on the battery, fuel lines, the carburetor, or sheet metal
body parts.
4. Positive-grounded vehicles: The battery will have two terminals. Connect the
NEGATIVE black charger Clamp (#2) to the negative ungrounded terminal of the battery.
Connect the POSITIVE red Clamp (#2) to a heavy gauge metal part of your vehicle
chassis or engine block away from the battery. Do not connect to the NEGATIVE (black)
terminal on the battery, fuel lines, the carburetor, or sheet metal body parts.