•
10
•
PROBLEM
POSSIBLE CAUSE
SOLUTION
The red Clamps Reversed/
Bad Battery LED is lit.
The battery voltage is still
under 10V (for a 12V battery)
or 5V (for a 6V battery) after 2
hours of charging.
The charger cannot desulfate
the battery.
The battery was unable to
reach the “full charge” voltage.
The charger was unable to
keep the battery fully charged
in maintain mode.
The charger detected that the
battery may be getting too hot
(thermal runaway).
The battery voltage dropped
too low during the maintain
mode.
The battery could be bad.
Have it checked or replaced.
The battery could not be
desulfated; have it checked or
replaced.
May be caused by trying to
charge a large battery or bank
of batteries on too low of a
current setting. Try again with
a higher current setting or
have the battery 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.
The charger automatically
shuts the current off if it
detects the battery may be
getting too hot. Have the
battery checked or replaced.
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. BEFORE RETURNING FOR REPAIRS
If these solutions do not eliminate the problem,
or for more information about troubleshooting, call:
Schumacher Electric Corporation Customer Service
1-800-621-5485
Return products under warranty to your local AutoZone store.
15. SPECIFICATIONS
Input .................................120V AC @ 60Hz, 10A max. continuous, 48A max. intermittent
Output ................................12V@ 2A/40A cont., 6A int.; 60 sec. max on, 120 sec. min off
200A int.; 5 sec. max. on, 180 sec. min. off
