Operating Instructions; Power Source; Led Indicator And Shutdown Protection - Schumacher Electric SI1479 Manuel D'utilisation

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4. OPERATING INSTRUCTIONS

1. If connecting in a vehicle, remove the cigarette lighter from its outlet.
2. Make sure the device to be operated is turned OFF.
3. Push the 12V power plug firmly into the outlet.
4. The LED indicator light should glow GREEN, verifying the converter is receiving power.
5. Plug the device into the converter's AC outlet or USB port.
6. Turn the device on.
7. To disconnect, reverse the above procedure.
NOTE: This converter has a cooling fan that runs continuously. Do NOT leave it
plugged into the vehicle when the engine is not running, or it will drain the battery.
NOTE: You may hear a "buzzing" sound being emitted from inexpensive sound
systems when operated with the converter. This is due to ineffective filters in the
sound system'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.

5. POWER SOURCE

To get the best performance out of your converter, we recommend that you use it
with the vehicle's engine running.
Your average automobile or marine battery at full charge will provide an ample power
supply to the converter for approximately 3 hours when the engine is off. The actual
length of time the converter will function depends on the age and condition of the battery
and the power demand being placed by the device being operated with the converter.
If you decide to use the converter while the engine is off, we recommend you
turn OFF the device plugged into the converter and disconnect the converter's
plug from the 12V accessory outlet before starting the engine. To maintain battery
power, start the engine every 2 to 3 hours and let it run for approximately 30
minutes to recharge the battery.
Although it is not necessary to disconnect the converter when turning over the engine,
it may briefly cease to operate as the battery voltage decreases. While the converter
draws very low amperage when not in use, it should be unplugged to avoid battery drain.

6. LED INDICATOR AND SHUTDOWN PROTECTION

The GREEN LED automatically lights when plugged into a 12V DC source and the
RED LED will light under the following conditions:
1. When the power input from the vehicle's battery drops to approximately 10
volts, low battery shutdown occurs and converter shuts off. Solution: recharge
or replace the battery.
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