If you plan to use your Windcharger with a Lithium battery, please let us know at the time of purchase. Stella can program the Windcharger specifically for Lithium use at no extra cost.

Low wind speed output in the 8-10 knot range is what counts. The Rutland 1200 delivers at low wind speeds with appreciable output at higher wind speeds as well. Consider that in most cases we select anchorages that are protected from the wind in which case the output at higher wind speeds is not so important. Consider the time spent at anchor versus sailing.

When sailing the apparent wind is typically higher so the additional loads when under way are typically well covered in the 15 to 20 knot range..

Charge Controller

Included with the wind generator is a charge controller which is suitable for both lead acid and Lithium batteries (always check manufacturers specifications). In the case of Lithium, do not connect the supplied temperature compensation sensor.