Power Source - Schumacher Electric PI-200 Manual Del Propietário

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NOTE: You may hear a "buzzing" sound being emitted
from inexpensive sound systems when operated with the
inverter. This is due to ineffective filters in the sound sys-
tem's power supply. Unfortunately, this problem can only
be resolved by purchasing a sound system with a higher
quality power supply or higher quality filter.
7.

POWER SOURCE

Your average automobile or marine battery at full charge
will provide an ample power supply to the inverter for
approximately 3 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.
If you decide to use the inverter while the engine is off,
we recommend you turn OFF the device plugged into
the inverter and disconnect the inverter's plug from
the 12-volt accessory outlet before starting the engine.
To maintain battery power, start the engine every 2 to
3 hours and let it run for approximately 10 minutes to
recharge the battery.
Although it is not necessary to disconnect the inverter
when turning over the engine, it may briefly cease to
operate as the battery voltage decreases. While the
inverter draws very low amperage when not in use, it
should be unplugged to avoid battery drain.
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