Why does our Mini Wind Turbine not need a charge controller?

One of the best features of our 12 volt Mini Wind Turbine is that it doesn't need a charge controller to function. 

The answer to this question depends on 2 variables: The wind speed and the size of your battery. 

Here is our official recommendation:

With no charge controller, in order for your battery to not be damaged, the battery should have at least 50 Amp-hours (Ah) for every 2 watts the turbine is producing. This rule of thumb also works for solar panels.

Here's an example:

You're at the beach.  The wind speed is about 25 mph and the mini wind turbine is producing about 10W.

10W / 2W = 5

5 x 50 = 250 Ah

This means that if your battery is rated for at least 250 Ah, you don't need a charge controller. 

As you can see, everyone's situation is different. If you would like to use a charge controller with your mini wind turbine, we would recommend our 120W max charge controller

 As always, please don't hesitate to email us at with any questions or concerns you may have. 

1 comment

  • Dee Lehrer

    If mounted on a vehicle and the travel speed is 60 mph, what would be the produced wattage?

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