Are you certain this produces 12v DC? Looking through other ads for the same seller, there are some that appear to be the exact same wind generator
and they mention "AC 12V."
And then, does it produce enough voltage to charge a battery? The seller does not seem to provide any detailed specs. If it can't produce pretty close to 14 volts DC then it is going to be useless for charging
a 12V battery bank. How many watts does it produce at what wind
I would not spend my money
on a generator
like this unless I had a LOT more details on the specifications. Buyer beware.