If it sounds too good to be true...
>>The prospect of almost instantaneous phone recharging is impressive by itself, but the engineers also told the university that a phone powered by these batteries could even be used to jump-start a dead car battery. Then they could be fully recharged after another second. Holy cow.
If it sounds too good to be true...<<
http://www.walleyecentral.com/forums/showthread.php?t=224297
I’ve watched a guy use a model airplane Lithium-Ion battery to jump start his car, several times. More than enough power in a package half the size of a small loaf of bread. However, I have also seen them burst into nasty flames......not something I want to think about in a boat.....