Quick Charge NPEXU - Manual (Page 6)

TROUBLESHOOTING
Symptom Cause Corrective Action
No green LED when
Connected to battery.
The charger does not see
the battery.
Both the green and red
LED do come on, but
the ammeter stays at 0.
Break in DC cord, or
connector.
Battery voltage too low
to turn the charger on.
Battery is sulfated, and
will not accept a charge.
Have a qualified person
make repair.
If the battery has too
low a voltage you may
need to “jump” the dead
battery with a charged
battery, connecting
positive to positive, and
negative to negative so
the charger has enough
voltage to turn on. Once
charging, and given time
to build the voltage, the
jumper battery can be
disconnected.
Leave the charger
connected and ON. Over
some hours, the
ammeter may begin to
rise indicating current
flow. The amps will
build to the full capacity
of the charger, then
work back to 0
NOTE: Batteries in this
condition may not be
recoverable.
When switched on, the
red LED does not light,
and no amps read on
meter The panel mount fuse is
blown.
There is no AC power
present at the plug. Replace with one having
the same rating.
Check that there is
power at the source. If
using an extension cord,
check that it is not
damaged.