11
11. TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
REASON/SOLUTION
The booster won’t
jump start my car.
Clamps are not making a good
connection to the battery.
The booster battery is not
charged.
The vehicle’s battery is defective.
The fuse has blown.
Check for poor connection to battery and
frame. Make sure connection points are
clean. Rock clamps back and forth for a
better connection.
Check the battery charge status by pressing
the button on the front of the booster.
See LED Indicators section of this manual.
Have the battery checked.
Replace the power fuse (See section 8).
The booster won’t
power my 12V
device.
The 12V device is not turned on.
The booster battery is not
charged.
The 12V device draws more than
15A or has a short circuit.
Turn on the 12V device.
Check the battery charge status by pressing
the button on the front of the booster.
See LED Indicators section of this manual.
Disconnect the 12V device. The internal
breaker will automatically reset after
a minute or two. Try the 12V device again. If
it happens again, replace the 12V device.
The battery in the
booster won’t hold
a charge.
The battery is bad (will not accept
a charge).
Have the battery checked.
The green POWER
LED does not light
when charger is
properly connected.
AC outlet is dead.
Poor electrical connection.
Check for open fuse or circuit breaker
at the supplying AC outlet.
Check power cord and extension cord for
a loose fitting plug.
The red BAD
BATTERY LED is lit
and yellow/orange
CHARGING LED is
flashing rapidly.
Desulfation was unsuccessful.
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.
