•
7
•
PROBLEM
POSSIBLE CAUSE
SOLUTION
The red BAD
BATTERY
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.
The battery is sulfated.
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 charger is in desulfation mode.
Continue charging for several hours.
If not successful, have the battery
checked.
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 ..............................................................................................................12V
Output Current Rating ...........................................................................10A DC @ 12V DC
15. BEFORE RETURNING FOR REPAIRS
If these solutions do not eliminate the problem,
or for more information about troubleshooting,
contact customer service for assistance:
www.batterychargers.com
or call 1-800-621-5485
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.
