First, find out what power your boat has, and when it is available.
Typically 110 volt blenders will run down the batteries pretty darn quickly. If your boat has access to 110 through a generator, you should be okay.
Now, you can get a blender new at the Ace hardware on Welfare Rd, a three block walk from the marina. Cheap one for less than $50. The other option is to start looking now at home with eBay or garage sale. $20. Take it down and leave it. Have fun
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