Troubleshooting
Types of
Indication
problems
Charger
No indicator
does not
lights on.
work
Charger has
LED fault
no DC output
indicator is ON.
No charging
LED fault
current
indicator is ON
and charging
percentage LED
bar flashing or
blinking in
sequence.
No charging
LED fault
current
indicator is fast
flashing.
Full / float
LED fault
light won't
indicator is
come on
flashing. The
or full LED
charging
flashing
percentage LED
bar is flashing or
ON.
Possible
Suggested solution
causes
No mains power.
Check mains connections and
make sure power is switched
ON
Output is short
Check DC connection between
circuited.
charger and battery and make
sure they are not short circuited.
Reverse polarity
connection to
Check that the crocodile clips
battery.
haven't fallen off the battery.
Check that the crocodile clips /
eyelets are connected to the
correct polarity.
Battery is
Check the battery condition, age
severely
etc.
sulphated.
Battery may need replacement.
Battery has a
damaged cell.
Check the battery capacity.
Overheat
Move battery and charger to
protection mode.
cooler environment.
Check the battery charger.
Battery capacity
Check the charger specification
too large for the
matches the battery capacity.
battery charge
setting and it has
Battery cannot be charged and
timed out or
must be replaced.
battery is slightly
sulphated.
Charge rate selected might be
too low. Switch charger off and
on and try a higher charge rate
setting, providing it doesn't
exceed the maximum charge
limit for your battery.
10