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Old 09-18-2019, 06:28 AM   #1
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Amp/Wattage Converter

I bought a used 19' power awning to install on my deck. What amp/wattage converter do I need to run off my house? I believe they are fused at 15 amp when installed on an RV, does that hold true for household AC as well. I've found one on Amazon, Schumacher brand which is well known for battery chargers 15A/200W for $45. Thanks
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Old 09-18-2019, 06:39 AM   #2
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Ohms law

P=E*I

P is watts
E is volts
I is amps
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Old 09-18-2019, 08:19 AM   #3
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why worry about watts? if it is fused for 15 amps in the rv @ 12 vdc supplying anything more than that is overkill. so if the charger you mentioned supplies 15 amps @ 12 vdc that would be sufficient.
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Old 09-18-2019, 12:57 PM   #4
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Rather than a battery charger I'd opt for a power supply like one of these:

https://www.amazon.com/LEDwholesalers-Power-Adapter-5-5x2-5mm-3262-12V/dp/B074GGMD5J/ref=asc_df_B074GGMD5J/?tag=hyprod-20&linkCode=df0&hvadid=198076677096&hvpos=1o3&hvne tw=g&hvrand=10020136702021743886&hvpone=&hvptwo=&h vqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9033389 &hvtargid=aud-801657747996la-354053952603&psc=1




More compact than a battery charger but still delivers 12V @ 20 amp. Cost: $40

Might even check out your local "Geek Shop" that repairs computers. They may have a power supply like this lying around. Just make sure it's a 12 volt unit.

You can also use one of these:

https://www.amazon.com/ALITOVE-Trans.../dp/B078RZ6C3N



Cost: $18


Both provide 12 volts and plenty of current to power an awning. When mine operates the motor draws around 6 amp as shown on my Battery Monitor.
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Old 09-18-2019, 01:06 PM   #5
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P=E*I What does * mean? https://www.amazon.com/gp/r.html?C=1...7240_435795930 I was looking at this
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Old 09-18-2019, 01:14 PM   #6
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Quote:
Originally Posted by DLinMI View Post
P=E*I What does * mean? https://www.amazon.com/gp/r.html?C=1...7240_435795930 I was looking at this
In a mathematical equation, it means "times" or "X" or "multiplied by".
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Old 09-18-2019, 04:17 PM   #7
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Quote:
Originally Posted by DLinMI View Post
P=E*I What does * mean? https://www.amazon.com/gp/r.html?C=1...7240_435795930 I was looking at this
Seems expensive considering there are less expensive units that will do the same thing.
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