Control Panel; Charging The Internal Battery - Schumacher SL1 Owner's Manual

6. CONTROL PANEL

DIGITAL DISPLAY
When the clamps are connected to a
vehicle's battery, the digital display indicates
the battery's voltage. When not connected
to a battery, the digital display is used to
indicate the percent of charge of the jump
starter's internal battery. See Display
Messages for a complete list of messages.
NOTE: If the vehicle's battery voltage is
too low to detect, the display will remain
blank; the voltage will not display. A manual
start procedure is required to enable
the jump start function. See Section 8.2,
Starting a Battery with Low Voltage.
NOTE: During charging, the display will
go into sleep mode and will not display
any messages. To turn the display back
on, press any button.

7. CHARGING THE INTERNAL BATTERY

IMPORTANT! CHARGE IMMEDIATELY
AFTER PURCHASE, AFTER EACH USE
AND EVERY 3-6 MONTHS, TO KEEP THE
INTERNAL BATTERY FULLY CHARGED
AND PROLONG BATTERY LIFE.
7.1 To reduce the risk of electric shock,
unplug the unit's wall charger from the
outlet before attempting any maintenance
or cleaning. Simply turning off the controls
will not reduce this risk.
7.2 When charging the internal battery, work
in a well ventilated area and do not restrict
the ventilation in any way.
7.3 CHECKING THE LEVEL OF THE
INTERNAL BATTERY
To check the internal battery's charge
level, make sure the unit is turned OFF,
then press the
display will show the battery's percent of
charge. A fully charged internal battery will
read 100%. Charge the internal battery if
the display shows it is under 100%.
7.4 CHARGING THE INTERNAL BATTERY,
USING THE AC WALL CHARGER
WARNING! Use only the charger included
with the unit to charge the internal battery.
Using any other charger will damage
the unit.
1. Plug the AC wall charger into the unit's
12V input socket.
2. Connect the wall charger to a 120VAC
electrical wall outlet.
3. The green LED will light, and the display
will show CHARGING-xx%. Complete
charging may take 4-6 hours.
or button. The digital
LED INDICATOR
• Green LED solid – The internal battery
is charging.
• Green LED flashing – Charging has
aborted.
• Green LED pulsing – The internal
battery is fully charged.
FUNCTION BUTTONS
LIGHT – Operates the LED light
12V/USB – Enables the 12V DC
port and the USB port
JUMP START – Enables the jump
start function
4. When the internal battery is completely
charged, the green LED will pulse, and
the display will show FULLY CHARGED.
5. When the battery is fully charged,
disconnect the wall charger from the
AC outlet, and then unplug the wall
charger from the unit.
6. Charge the unit as soon as possible
after use.
7.5 CHARGING THE INTERNAL BATTERY
WHILE DRIVING
You may also charge the internal battery
while driving, using the 12V DC car
charger (included).
1. Make sure the car is running.
2. Plug the 12V DC adaptor cable into the
unit's 12V input socket.
3. Insert the other end of the accessory
cable into the vehicle's accessory
outlet (lighter socket).
4. The green LED will light, and the display
will show CHARGING-xx%. Complete
charging may take 4-6 hours.
5. When the internal battery is completely
charged, the green LED will pulse,
and the display will show FULLY
CHARGED.
6. When the battery is fully charged,
disconnect the accessory cable from
the unit, then from the lighter socket of
the vehicle.
7. Charge the unit as soon as possible
after use.
NOTE: Completely disconnect the charger
cable when the engine is not running.
• 5 •