... 400W rated 600W max ,low noise ,with build in controller. Go to wholesale and retail website:http://www.aliexpress.com/item/Wind ... -with-inner-MPPT-wind-controller-600W-Max-400W-rated-used/678620152.html When you order, please leave message to me. Whether you ... battery .But on a normal controller, only when turbine produce more than 12or 24V, It will start to charge the battery. In ...