Troubleshooting; Care And Maintenance - Black & Decker 40 AMP Instruction Manual

Standby Mode
Always place the unit in Standby Mode before disconnecting the AC cord and clamps (see individual functions for directions).
Placing the unit in Standby Mode does NOT turn the unit off. If left connected to a battery in Standby Mode, the unit will
automatically turn on again in approximately 1 minute. The AC cord and clamps must be disconnected to turn the unit off.

TROUBLESHOOTING

Fault Conditions
If there is a problem with the connections or battery, the LCD will display the appropriate fault condition message, as follows:
Fault Message
REVERSE POLARITY (displays and the
unit beeps once)
INTERNAL OPEN CELL OR SULFATED
CONDITION
INTERNAL SHORTED CELL BATTERY
OVERHEAT CONDITION
NO BATTERY CONNECTED
Charging a Very Cold Battery
If the battery to be charged is very cold (in temperatures below freezing — 0°C/ 32°F), it cannot accept a high rate of charge.
The battery will accept a higher charge rate as it warms. NEVER ATTEMPT TO CHARGE A FROZEN BATTERY.

CARE AND MAINTENANCE

With proper care and minimal maintenance, the 40 Amp Automatic Battery Charger will provide years of dependable service. For
maximum performance, manufacturer recommends:
• After each use, clean the battery charger clamps — be sure to remove any battery fluid that will cause corrosion of the
clamps.
• Clean the outside case of the charger with a soft cloth and, if necessary, mild soap solution.
• Do not allow liquid to enter the charger. Do not operate when charger is wet.
• Keep the charger cords loosely coiled during storage to prevent damage to the cords.
WARNINGS:
• Do not use charger if cords or clamps have been damaged in any way — call Technical Support toll-free at 1-800-544-6986.
• There are no user-serviceable parts in this unit.
• Do not open the unit. In the event of malfunction, it must be returned to manufacturer for professional testing and repair.
Opening the unit will void the manufacturer's warranty.
Explanation/Recommendation
The connections to the battery's positive and negative terminals are incorrect.
Observing the "Important Safety Instructions" at the front of this manual,
disconnect AC cord and clamps and reconnect to battery with correct polarity.
The battery being charged either has an internal open cell or is highly sulfated and
cannot accept normal charge current.
• Follow the steps in "Reconditioning the Battery" to recondition the battery.
• If the situation persists after reconditioning, we recommend taking your battery
to a certified automotive service center for evaluation
The battery being charged has an internal shorted cell and cannot accept normal
charge current. We recommend taking your battery to a certified automotive
service center for evaluation.
The ventilation grill that prevents the air from flowing in and out of the charger
may be blocked.
• Observing the "Important Safety Instructions" at the front of this manual,
disconnect AC cord and clamps, allow the unit to cool for 30 minutes and
reconnect.
• Make sure there is ample ventilation before resuming operation.
When this message appears, the most common cause is poor connection to
battery.
• Observing the "Important Safety Instructions" at the front of this manual,
disconnect AC cord and clamps, clean battery terminal and reconnect.
• If the situation persists, we recommend taking your battery to a certified
automotive service center for evaluation.
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