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by a_crc 2064 days ago
If you're looking for a complete solution, there are a decent number of small wind turbines designed for charging 12v batteries (car batteries) on yachts.

Here's the 1st company I found on google. I can't personally vouch for the product, but it should give you an idea of what's available.

https://www.leadingedgepower.com/le-450-wind-turbine-12-24-4...