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Sunforce 44444 12Volt 400Watt Wind Generator
Studio : Sunforce
by Sunforce
Brand : Sunforce
Model : 44444
Release Date : 2005-11-25
Publisher : Sunforce
Availability : Usually ships in 24 hours and eligible for FREE Super Saver Shipping on orders over $25.
EAN : 0787769444442
UPC : 787769444442
Avg. Customer Rating: (based on 8 reviews)
List Price : $799.99
Our Price : $499.99
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Uses wind to generate power and run your appliances and electronics
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Constructed from lightweight, weatherproof cast aluminum
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Fully integrated regulator that automatically shuts down when the batteries are completely charged
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Maximum power up to 400 watts or 27 Amps
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Measures 15 x 9 x 27 inches (WxHxD)
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Product Description |
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Use the wind to generate power and run your appliances and electronics. Great for cabins, 12V battery charging, remote power, backup power and hobbyists. Delivers up to 400 Watts. U.S.A. |
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Check the Power Curve |
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Go to the Sunforce website to view the manual and check the power curve. The stated 400w output is at 28mph. The output at a more typical 15mph is 50w or 3.5amp considering the 14.1vDC regulator setting. |
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Be Realistic!!! |
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I am writing this review to explain that US homes consume more energy than any other homes on the planet. A small wind turbine will only supply part of your household need. Most US households use 10,000 megawatt a year. That requires about 800kwh a month, or about 15 kilo watts a day, to have a significant impact! No small windturbine has that output--plus small turbines are not as efficient as large ones. Do your homework first! |
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Totally dude |
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Super. I like to write reviews with little to no context either. We have so much alike. |
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2nd correction |
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I am writing to help people understand about voltage(V), current(I) and power(W). First off, the max voltage and the current that the wind generator is rated at is probably in the form of Voc and Isc which stands for voltage(V)open circuit and current(I)short circuit. Voc is measured in parallel but Isc or current can ONLY be measured in series or in-line with the the source, NEVER in parallel. To get an accurate Isc reading you must "short" or close the circuit with the measuring device as the load of the Generator. Unless you have an AMP clamp, current transformer(CT) or some other way to measure higher current, you can't get an accurate measurement. Most multimeters can measure current BUT most CAN'T measure more than say 10 Amps. Anything more then that will usually result in a burnt fuse or worst, a burnt meter. This also describes how they got their figures(Watts and Amps). Under Voc and Isc the voltage can be about 21V and the current could be about 20-25 amps. Only under a load will the voltage go down to aprox. 13-14V and the amperage will also drop accordingly. The way they got their voltage, amperage, and wattage figures are in of course perfect wind conditions and typically will be much less on average. Therefore the figures are correct but they will never be seen unless you measure them in the perfect wind conditions under zero load as stated above. As for the Amperage, unless you have all the necessary charging equipment you dont want to see more then say 6-10 amps going to a wet cell battery anyway because you can overcharge or damage your battery or batteries, maybe even explode. I hope this makes scence and helps some people. I dont own this Generator but I would buy it if i had more wind where i live. |
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Watts=Volts X Amps |
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27 Amps X 14 Volts = 378 Watts therefore 2-3 amps is unacceptable if batterys are low, unit is either defective or way over rated.... unless batteries were almost full then 2-3 amps is normal since regulator is tappering down voltage, |
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