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• 10 •
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, 2.5A
Output Voltage .......................................................6V or 12V, with Auto Voltage Detection
Output Current Rating ..............................................2A DC
@
6V DC; 10A 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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