Schumacher SC1324 Owner'S Manual Download Page 8

PROBLEM

POSSIBLE CAUSE

SOLUTION

The red   LED is lit. The battery voltage is still below 

10V after 2 hours of charging.

(or)

In maintain mode, the output 

current is more than 1.5A for  

12 hours.

Desulfation was unsuccessful. 

Lack of progress is detected and 

battery voltage is below 14.2V. 

The battery’s initial voltage is 

below 12.2V and the total input is 

less than 1.5 Ah.

The battery voltage drops to 

below 12.2V in Maintain Mode.

The battery may be defective. 

Make sure there are no loads on 

the battery. If there are, remove 

them. If there are none, have the 

battery checked or replaced. 

The battery may be defective. 

Have battery checked or replaced.

The battery may be overheated. If 

so, allow the battery to cool. The 

battery may be too large or have a 

short circuit. Have battery checked 

or replaced.

The battery capacity is too low, 

or the battery is too old. Have it 

checked or replaced.

The battery won’t hold a charge. 

May be caused by a drain on the 

battery or the battery could be bad. 

Make sure there are no loads on the 

battery. If there are remove them. 

If there are none, have the battery 

checked or replaced.

1

4

.

 

SPECIFICATIONS

Input .................................120V AC @ 60Hz, 10A max. continuous, 48A max. intermittent
Output ..........................12V DC, 2A/40A cont., 6A int. (60 sec. max. on, 120 sec.min. off)

200A int. (5 sec. max on, 180 sec. min. off)

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Summary of Contents for SC1324

Page 1: ...UAL AND READ BEFORE EACH USE This manual will explain how to use the battery charger safely and effectively Please read and follow these instructions and precautions carefully MODEL SC1324 Automatic Battery Charger OWNERS MANUAL ...

Page 2: ...MOST IMPORTANCE THAT YOU FOLLOW THE INSTRUCTIONS EACH TIME YOU USE THE CHARGER b To reduce risk of battery explosion follow these instructions and those published by battery manufacturer and manufacturer of any equipment you intend to use in vicinity of battery Review cautionary markings on these products and on engine 2 PERSONAL SAFETY PRECAUTIONS 2 1 Consider having someone close enough by to co...

Page 3: ... from electric outlet Never allow the clips of charger to touch each other Clips may be energized and they may spark 5 2 Attach clips to battery and chassis as indicated in sections 6 and 7 6 FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE WARNING A SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION TO REDUCE THE RISK OF A SPARK NEAR THE BATTERY 6 1 Position AC and DC cords to reduce ris...

Page 4: ...nt to Canadian Regulations use of an adapter plug is not allowed in Canada Use of an adapter plug in the United States is not recommended and should not be used 8 3 USING AN EXTENSION CORD The use of an extension cord is not recommended If you must use an extension cord follow these guidelines Pins on plug of extension cord must be the same number size and shape as those of plug on charger Ensure ...

Page 5: ...ain position 7 Select the desired rate 8 When disconnecting the charger set the switch to the OFF position disconnect the charger from the AC power disconnect the negative clamp and finally the positive clamp 9 A marine boat battery must be removed and charged on shore BOOST MODE NOTE The unit will automatically switch to Boost mode depending on the voltage To select the Charge Maintain mode press...

Page 6: ...8 Times are based on a 50 discharged battery and may change depending on age and condition of battery ABORTED CHARGE If charging cannot be completed normally charging will abort When charging aborts the charger s output is shut off and the Clamps Reversed Bad Battery red LED will light Do not continue attempting to charge this battery Check the battery and replace if necessary DESULFATION MODE Des...

Page 7: ...SHOOTING PROBLEM POSSIBLE CAUSE SOLUTION Charger will not turn on when properly connected AC outlet is dead Poor electrical connection Battery is defective Check for open fuse or circuit breaker supplying AC outlet Check power cord and extension cord for loose fitting plug Have the battery checked Engine start does not work Drawing more than 200 amps Failure to wait 3 minutes 180 seconds between c...

Page 8: ... battery may be defective Have battery checked or replaced The battery may be overheated If so allow the battery to cool The battery may be too large or have a short circuit Have battery checked or replaced The battery capacity is too low or the battery is too old Have it checked or replaced The battery won t hold a charge May be caused by a drain on the battery or the battery could be bad Make su...

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