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• 5 •
NOTE: You may hear a “buzzing” sound being emitted from inexpensive sound
systems when operated with the converter. This is due to ineffective lters 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 lter.
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 briey 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.
2. When the power input from the vehicle’s battery exceeds 15 volts, high voltage
protection occurs. Solution: reduce the voltage range to between 12 and 14 volts.
3. The continuous load demand from the equipment or device being operated
exceeds the continuous load rating of the converter being used. Solution: use
a higher capacity converter or lower rated device.
4. The case temperature becomes hot (exceeds 145°F). Solution: allow the
converter to cool. Do not block the cooling slots or air ow over and through
the converter. Reduce the load on the converter to the continuous rated output.
RESET: To reset after shutdown occurs, remove the 12V plug from the accessory
outlet. Check the source of the problem and correct. Reinsert the 12V plug into the
accessory outlet.
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