Power Source - Schumacher Electric PID-760 Owner's Manual

6. Turn the device ON. The display will now show the total
wattage used by the device. To change the display, press
the button marked PRESS TO CHANGE DISPLAY.
7. To disconnect the PID-760, reverse the above steps.
NOTE: If there is a short circuit or power surge in the
device, SC will display and the alarm will sound. To turn
off the alarm, press and hold the button marked PRESS
AND HOLD FOR ON / OFF. If the SC displays after
several attempts, there is a short circuit or the device
requires more surge power than the inverter is capable
of providing.
Your average automobile or marine battery at full charge
will provide an ample power supply to the inverter for ap-
proximately  hours when the engine is off. The actual length
of time the inverter will function depends on the age and
condition of the battery and the power demand being placed
by the device being operated with the inverter.
Turn OFF the device plugged into the inverter before starting
the engine. To maintain battery power, run the engine every
2 to  hours for approximately 10 minutes to recharge the
battery. While the PID-760 draws very low amperage when
not in use, it should be unplugged to avoid battery drain.

POWER SOURCE

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