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• 9 •
PROBLEM POSSIBLE CAUSE SOLUTION
The red
LED is lit.
The battery voltage is still below
10V (for a 12V battery) or 5V
(for a 6V battery) 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 (for
a 12V battery) or 7.1V (for a 6V
battery).
The battery’s initial voltage is
below 12.2V (for a 12V battery)
or 6.1V (for a 6V battery) and the
total input is less than 1.5 Ah.
The battery voltage drops to
below 12.2V (for a 12V battery)
or 6.1V (for a 6V battery) 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.
14. SPECIFICATIONS
Input Voltage ..................................................................................120V AC
@
60Hz, 1.5A
Output Voltage .......................................................6V or 12V, with Auto Voltage Detection
Output Current Rating ................................................2A DC
@
6V DC; 6A DC
@
12V DC
15. BEFORE RETURNING FOR REPAIRS
Ifthesesolutionsdonoteliminatetheproblem,
orformoreinformationabouttroubleshooting,
contactcustomerserviceforassistance:
www.batterychargers.com
or call 1-800-621-5485
Monday-Friday7:00am to 5:00pm CST
For REPAIR OR RETURN, contact Customer Service at 1-800-621-5485. DO NOT SHIP
UNIT until you receive a RETURN MERCHANDISE AUTHORIZATION (RMA) number
from Customer Service at Schumacher Electric Corporation.
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