The booster turns on, but won't jump
start my vehicle.
When cable is correctly connected to
both battery and booster: Green LED
blinking; Red LED off; no beep.
4.2. Smart cable LED and Alarm behavior
LED Display
Green -
Flashing
Green - Solid
Green & Red -
Solid
No lights
Red - Solid
Green & Red -
Flashing
alternately
5.
Warranty
Schumacher Europe, Belgium, offers a limited warranty for the benefit of the original purchaser of this
product. The warranty is not transferable. The warranty applies to manufacturing and material faults
during a two-year period from the date of purchase. To benefit from the guarantee, the purchaser is
Buzzer
Description / Reason
Warning
/
Stand-by mode
Cable is connected to booster only.
Smart cable is only connected to the vehicle (without
connecting the booster).
Vehicle battery voltage is between 13,5V and 17,2V.
Jump Start Ready mode
/
Cable is connected correctly to both battery and booster.
/
Jump Start overtime mode
Auto shut-off, due to inactivity (more than 120 seconds).
Disconnect the booster from the vehicle battery, then restart
from Jump Start Step 1.
Voltage limit protection
Wait for 30 seconds to let voltage going up, and disconnect
either clamps to auto reset.
Beeps once
High temperature protection
per second
The Smart cable will reset automatically.
/
Smart cable is only connected to the vehicle (without
connecting the booster).
Vehicle battery voltage is below 5V (Smart cable will not work).
Beeps once
Smart cable is only connected to the vehicle (without
per second
connecting the booster).
Vehicle battery voltage is below 13,5V.
Input high voltage protection
The battery pack may be defective. Contact a service center.
Input low voltage protection
Recharge the booster.
Beeps
Short circuit protection
rapidly
In Stand-by mode, the smart cable positive clamp and
negative clamp were connected together. Warning: In Jump
Start Ready mode, this could lead to danger.
Beeps 2
Reverse polarity protection
times per
Detection of reverse polarity connection as long as the vehicle
second
battery voltage is at least 0,5V.
/
Reverse charging protection
Disconnect either clamps, then the Smart cable will enter into
the Stand-by mode.
Check connections.
Verify the charge level of the booster is at least 40%.
Do not attempt to jump start your vehicle more than three
consecutive times. If the vehicle still does not start,
consult a qualified service technician.
"Fake" high battery voltage is detected, but reverse
charging protection did not activate. You can turn key to
jump start the vehicle.
7