Wind Power as a supplemental source to Batteries at remote sites?

Hi All,

I was just curious if there has been any development or testing of using small wind mills or wind power in general to help supplement an energy source to batteries? We have some remote areas with little or minimal solar input due to requirements of the landowners where it would be nice to have an additional way to charge AGM batteries before they become too depleted to be able to recharge or use. Any examples or thinking on how this would feasibly work would be appreciated!

(Example: this small wind mill for powering LED house lights kind of jump started this thinking: Amazon.com)