Harbor Freight Tools 3418 manual Charging Batteries

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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.

CHARGING BATTERIES

Caution: Do not overcharge maintenance-free batteries.

1.Place the Battery Charger and battery in a well-ventilated area.

2.Determine the voltage of the battery from the battery labels.

3.Push the Charge / Start switch to the Charge mode. Push the Select Setting switch to the desired battery voltage: 6V or 12V.

4.If charging a battery while in a vehicle, leave the hood open and do not leave the charger unattended. Separate the charger and battery as much as possible.

5.With the Battery Charger unplugged, connect the positive (red) Cable Clamp (2) to the positive terminal of the battery.

If charging a battery mounted in a vehicle, first remove the vehicle’s red cable from the battery; otherwise damage may occur to the vehicle’s electrical system. If in doubt, refer to the vehicle’s service manual.

6.Connect the negative (black) Cable Clamp (2) to the negative terminal of the battery.

7.Plug the Power Cord (3) into the electrical outlet.

8.Note: If the Red Reversed Connection LED is lit, the cables are connected to the wrong terminals of the battery. If this happens, immediately switch off the charger, unplug it, and switch the connections.

For a quick charge assist to enable starting the engine, charge for 5 to 10 minutes.

For a full charge, leave the Battery Charger running. If the charger is in manual mode, it must be monitored and shut off when the battery is charged; NEVER leave a battery unattended while charging. If the charger is in automatic mode, when the battery is fully charged the Battery Charger will automatically cycle through a trickle charge, and the green LED will remain lit.

Optionally, only with the battery removed from the vehicle and the charger in automatic mode, the Battery Charger can be left on while connected to the battery. When the battery becomes weak, the Battery Charger will automatically turn on. When the battery is once again charged, the Battery Charger will automatically shut off. It will, however, keep sensing the charge of the battery. Note: Do not leave Battery Charger on for long duration without checking the distilled water level of the battery; do not allow distilled water to boil off. Note: Do not leave a charging battery unattended.

REV 08f

SKU 03418

For technical questions, please call 1-800-444-3353.

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Contents Battery CHARGER/STARTER Specifications Important SafeguardsPersonal Precautions Charger Location Specific Safety Rules for the Battery Charger Unpacking Risk of ExplosionAbout Charging Batteries SetupPreparing the Battery Charging Batteries Ammeter Readings Engine StartingMaintenance Parts List and Assembly DiagramLimited 90 DAY Warranty