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Old 11-06-2008, 05:50 PM   #15
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by deputydog:
Kinda off the subject, but relevant. Black and Decker Pest repellers (ultrasonic) that plug directly into a 120 volt outlet will melt and smoke within less than 1 minute on modified sine wave inverter. Fortunately I had it plugged into outlet at passenger seats feet and I saw it backing out of my garage. Tried two more (they come in a 3 pack) and all three were fine on shore power and promptly lit off on inverter. </div></BLOCKQUOTE>

Not really off topic as the problem is not electric blankets but what you did not read can harm you. All modified sign wave inverters carry the warning that they can cause some devices to overheat and require the user to test for compatibility before leaving a device running on the inverter unattended.

Bottom line is that Modified Sign Wave Inverters need to be tested for compatibility with any device you plug into them before leaving them unattended for any length of time.

It is not just electric blankets or only Black and Decker pest repellers that one needs to be wary of. If there is a chance that it will be running off the inverter then it needs to be tested for compatibility/overheating before any unattended use regardless of what it is.
Neil V
2001 Winnebago Adventurer WFG35U
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Old 11-08-2008, 07:39 AM   #16
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Some things I have had fail or overheat or vibrate loudly on Modified Sine inverter power:

o AA battery charger (brand unknown - got very hot)
o Bosch 12v cordless drill battery charger (heat, loud vibration)
o Intelletec digital timer (2, failed)
o X10 remote controls (overheated and failed)
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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