If the charger connection to the power supply or to the battery pack is faulty, it will cause current surges that will shut off the charger.

SOLUTIONS:

• Check all connections to the charger. Sometimes the plug connections will get dirty or loose. Remove the pins from their plastic housings and check the connection (note the polarity). If the wire connection to the pin looks faulty, you should solder the connection. Test the pin connections outside the plastic housing. The pins should push together and not be loose. The female pins can be tightened with a small pair of pliers.

• Check the connections at the alligator clips. Pull back the boots covering the wire connection to the clips and make sure there is a good solder connection.

• Check that all clips and pins are clean. A dirty or bad connector usually gets hot during charging.

The voltage of a bad battery pack can suddenly drop at any point during a charge. You can sometimes hear a cell `vent' when this happens.

SOLUTION:

• Try charging different battery packs.

If the voltage out of your power supply is erratic, it can cause the charger to shut-off.

SOLUTION:

• Try charging off of an automobile battery. If you do not have a problem while charging from an automobile battery, there may be a problem with your power supply.

If the charger's charge rate is too high or the voltage of your power supply is too high, the charger will get hot and shut down. Also, the fewer the number of cells you are charging, the hotter the charger will get.

SOLUTIONS:

• Use a fan to keep the charger cool. Novak offers a optional cooling fan (Part # 5635) for the DIGI-PEAK chargers.

• Reduce the charge rate. Reducing the charge rate reduces the amount of heat the charger has to dissipate.

• Lower the power supply voltage. You only need about 12.0 volts to fully charge a six cell battery pack, and 13.5 volts for a 7 cell pack. Check the voltage of the power supply while you are charging. Some power supplies output a much higher voltage than what they are rated.

• Charge using PULSE instead of LINEAR. At equal charge currents, pulse charging reduces the amount of heat the charger generates.

If you lower the charge current while you are charging, the voltage of the pack will drop causing the charger to shut-off.

SOLUTION:

• If you change the charge current, press the START button again.

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