Published Date 7/1/13 8:12 PM
Charging is easy with USB and 12v  something like this will work fine (its worth paying a little bit more than the cheapest as they can be a fire hazard) Agen its toss a coin for something like this to work with a apple device. (click on the images for amazon links)
Your boat needs a car power plug, most should come with one, if your boat doesn’t you can just crocodile clip on on you Battery.
It would be a bodge, but would work.