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This is THE Worlds Largest Forum devoted to the Norfolk Broads, here you can discuss issues about the Norfolk Broads. Or just somewhere to chat with others interested in the Norfolk Broads area. In 2015 forum members spent 2,048 days afloat on the Broads
We also use a 3 mifi and we have never had any problems with it whatsoever. We charged our laptop using the 12 v cigarette lighter socket. We charged all of our mobiles , camera etc the same way. You dont need 240 all of the time. What we used to do is charge anything which needed charging while travelling each day.