Electric Conversion for a Marshall Sanderling

I received a great query several days ago from one of our readers who has a very cool project in mind. He's asking some questions that should be shared. Marshall Sanderling Eddy writes: Hello Ed,I am about to pull the trigger with a mastervolt 2.5 kw on my 18' Sanderling catboat. I am also worried about runtime ie range. any updates? Looking to put 4 valence lithium Iron Magnesium phosphate 12v 138ah batteries. Any thoughts would be greatly appreciated. Thanks Eddy The updates Eddy are ...