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.
Post time: Jul-12-2017