Help on selecting wattage output for Wind Turbine Generator to charge my Trolling Batteries
I'm looking for help in rightsizing the wattage for a 24 volt VAWT Lantern style wind turbine to charge my two 12 volt deep cycle marine batteries (flooded lead acid), in a 24 volt configuration, to power my Minnkota trolling motor. Each marine battery is rated at 85 AH. The VAWT (with MPPT) I'm looking at has the following specs: Rated power:800W, Maximum power:1000W, Rated voltage:12V/24V, Start up wind speed:2m/s and Rated wind speed:11m/s. Wind speed at my target location just off Lake Erie typically ranges between 5-14 mph but can go above 20 mph. I've been told by my battery manufacturer (and from other sources) to keep the max charging amps less than 25% capacity or a max 21 amps to avoid damaging the battery. I normally take my boat out on the water on the weekends and looking to charge my trolling marine batteries in between outings. Currently, I have to either move my boat down the road to an electrical outlet to charge my trolling batteries or yank them and charge them at home I have looked at solar panels but have ruled them out due to certain constraints.
Given the above information, can someone recommend a wattage (e.g. 500W, 1000W, 1500W, etc) to me that will meet my requirements? Any tips on reliable VAWT's I should be looking at that aren't too pricy?
Any help would be appreciated.
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