PROBLEM
The Booster has no power.
The battery in the booster won't
hold a charge.
Charger
PROBLEM
All five LEDs come on for 2
seconds, then turn off.
The green
POWER LED does
not light when charger is properly
connected.
The red
BAD BATTERY LED
is lit and yellow/orange
is flashing.
The red
BAD BATTERY LED
is lit.
REASON
The booster's battery is not
charged.
The internal fuse has blown.
The 12V device draws more
than 15A or has a short circuit.
The 12V device is not
turned on.
The battery is bad (will not
accept a charge).
REASON
The charger is plugged into an
AC outlet.
AC outlet is dead.
Poor electrical connection.
The battery voltage is still below
10V after 2 hours of charging.
LED
(or)
In maintain mode, the output
current is more than 1.5A for 12
hours.
Desulfation was unsuccessful.
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 below
12.2V during Maintain Mode.
• 11 •
SOLUTION
Check the battery charge
status by pressing the
Voltmeter button. Recharge the
battery.
Replace the fuse.
Disconnect the 12V device.
The internal breaker will
automatically reset after a
minute or two. Try the 12V
device again.
Turn on the 12V device.
Replace the battery.
SOLUTION
No problem; this is normal.
Check for open fuse or circuit
breaker supplying AC outlet.
Check power cord and extension
cord for a loose fitting plug.
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 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.