400 watt wind turbine from aliexpress – installation, output test and review



These turbines look good but barely generate 10 % of their advertised output. I suspect the included charge controller being connected to the battery uses more power than the turbine can produce in an average month.
Waste of money, better off with another solar panel.
I plan to ditch the generator and bolt the blades to my own modified smartdrive permanent magnet generator, should make around 500 watts in a good wind.

To the trolls assuming my cable is too light and complaining about tree top turbulence, please read the following to put your minds at ease -:
Turbine has no problem getting up to full speed, infact I find the tree line ramps up and increases wind speed just above the tree tops in this location, sure there is some turbulence but when I see the blades spinning full speed I know its not a major issue. Cable loss is negligible with such a low output from the turbine -my wire gauge 4mm2, cable length 20m, max 20a advertised output from turbine 20a = AC energy loss of 20.78% worst case scenario with advertised output. Now from testing on the bench at recommended rpm with near flat 24v batt as a load, wired through the reg/rec as shown in the manual and experimenting with various loads including a 12v battery I know maximum output is more like 65w which would give me a cable loss of 3.1% not enough to worry about.

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Help My Neighbor Fix His Off Grid Solar System Wind Turbine Batteries



Help My Neighbor Fix His Off Grid Solar System Wind Turbine Batteries, so I was able to find out Their problem bad batteries. Solar system working fine wind turbine is fine charge controller is fine outback inverters is fine. Subscribe to both of my channels for more projects https://www.youtube.com/channel/UC_K1imbHx0p7ILPcoz4UioA
#offgridsolarsystem#help#solarbatteries

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TESLA TURBINE AND PERMANENT MAGNET ALTERNATOR BATTERY CHARGER



Here we are charging a battery. This is a Tesla turbine with 10 blades and an 8 inch rotor. We developed a converging nozzle for a better angle of attack. The generator is a 2 hp three phase motor. It has been modified with 72 N-48 rare earth magnets. The magnets are 1/2 inch diameter and 1/2 inch long. each has 17 pounds of pull force. The rotor has two poles. 36 N and 36 S.

The initial charge is 12.85 volts. The ending charge is 13.33 volts. Because there is no voltage regulation, the battery is the limiting factor. In series, this unit can output well over 240 volts and adapts automatically with the rectification bridge. The current begins to flow through the rectifier when the voltage meets or exceeds the battery charge. This can and will very easily overcharge a single battery fast. In series or parallel with multiple batteries this hazard is easily averted and the system efficiency is maximized.

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Helibug 1400W (2500Max) 12V/24V/48V Low RPM Axial Flux Alternator/Wind/PMA/Dynamo/Battery Charger/EV



I dont manufacture these anymore.

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Nikon Battery Charger Killed by Modified Sine Wave square Sine Wave



Nikon Battery Charger Killed by Modified Sine Wave square Sine Wave

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Testing a small dc motor for AA battery charging in a wind turbine setup



Do not attempt to replicate the test in the video as the spinning blades can hurt you.
I have a small Epson dc motor which can be used to make a wind turbine to charge AA batteries. Initial tests was 2 volts with a drag type blade. I made the blade more aerodynamic and was able to increase the voltage to over 4 volts. Subsequent testing with a more flattened blade yielded over 6 volts. I will try to use aluminum flashing for my next test. This together with a dc to dc step up converter can regulate the output to a pre-detemined voltage and make the motor more usable. With a leisurely wind, the motor should be able to put out 2 volts or so which should be enough to charge a set of AA batteries in parallel. I can use a schottky diode to reduce the voltage drop between the wind turbine and the batteries.
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Wind Turbine Generator High Amp 12 Volt Battery Charging — WindyNation’s SuperAmp Alternator



http://www.windynation.com/

An introductory video to WindyNation’s soon to be released Windtura SuperAmp Alternator. The SuperAmp is a permanent magnet alternator (PMA) which we have specifically designed for high amp 12 volt battery bank wind turbine charging. If you want to see some serious amps, then watch this video.

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How To DIY Solar Battery Charger



http://www.EnergyBrainiac.com – How To DIY Solar Battery Charger
The DIY Solar Charger | Popular Science
Jul 6, 2007 … The DIY Solar Charger. Keep your gadgets powered even when the grid … and build frames to hold the DC charger controller and the battery. …DIY: Solar Powered Battery Rechargers
In their latest catalog, several solar battery chargers are offered but one is particularly useful. The small Multi-volt Output Solar Panel (Cat. …Get Prepared Stuff – DIY Solar AA Battery Charger”
Most of the AA solar battery chargers available wouldn’t charge two AA 2000 mAh batteries in 4 days let alone 1 day of 4-5 hours of sun.Solar Battery Charging – Solar
Jul 30, 2007 … One of the simplest DIY solar projects is to make your own solar battery charger using a small Photovoltaic (PV) solar panel. …DIY Solar Battery Charger – Solar Energy How-to-Guide Directoy
DIY Solar Battery charger. Build your own solar battery charger for all of your electronic gadgets.Design Solar-Powered Computing Device – Hacked Gadgets – DIY Tech Blog
DIY projects describing how to build electronic projects. … Solar Battery Chargers – Cheap Solar Battery Chargers and Battery Charger ..
How To DIY Solar Battery Charger

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