Schumacher SL1327 Owner's Manual page 7

NOTE: If the car does not crank a second time, check the smart cable to
see if the green LED is lit. If you hear beeping or an LED is flashing, refer
to section 10, Troubleshooting. When the condition is corrected, the
smart cable will automatically reset.
NOTE: Cold weather may affect the performance of the jump starter's
lithium battery. If you hear only a click and the engine does not turn
over, try the following:
With the jump starter connected to the car battery and the green LED
illuminated on the smart cable, turn on all lights and electrical accessories
for one minute. This draws current from the jump starter and warms the
battery. Now try to crank the engine. If it does not turn over, repeat the
procedure. Extremely cold weather may require two or three battery
warmings before the engine will start.
NOTE: If no activity is detected, the smart cable will automatically shut
off after 120 seconds, and the red and green LEDs will be solid. To reset,
disconnect the clamps from the vehicle battery, and then reconnect.
IMPORTANT: DO NOT attempt to jump start your vehicle more
than three consecutive times. If the vehicle will not start after three
attempts, consult a service technician.
8. After the engine starts, unplug the battery clamps from the jump starter
socket and then disconnect the black clamp (-) and the red clamp (+),
in that order. Slide the ON/OFF switch to the OFF position.
9. Recharge the unit as soon as possible after each use.
7.2 CHARGING A MOBILE DEVICE, USING THE USB PORTS
The SL1327 includes two USB ports. One provides up to 2.4A at 5V
DC; the other is Quick Charge 3.0, which provides up to 5V at 3A, 9V at
2A or 12V at 1.5A.
1. Consult your mobile device manufacturer for proper charging power
specifications. Connect a mobile device cable to the appropriate USB port.
2. Slide the ON/OFF switch to the ON position. Charging should begin
automatically. The display will show which port is in use.
3. Charging time will vary, based on the mobile device's battery size and the
charging port used.
NOTE: Most devices will charge with either USB port, but may charge
at a slower rate.
4. When finished using the USB port, disconnect the charging cable from
your mobile device and then disconnect the charging cable from the unit.
Slide the ON/OFF switch to the OFF position.
5. Recharge the unit as soon as possible after each use.
NOTE: If no USB device is connected, power to the USB ports will
automatically shut off after 30 seconds.
• 7 •