21 May '13 23:11>
http://phys.org/news/2013-05-high-school-student-supercapacitor-young.html#ajTabs
Cell phone charges in less than a minute! Wins $50K!
Cell phone charges in less than a minute! Wins $50K!
Originally posted by joe beyserI imagine the paper for the exhibit would say the power ratings. They didn't say how long the cell phone would run on that supply either. My own smart phone runs several days on a full charge, an HTC windows phone. When I first got it the time was limited to just a few hours but the key was getting rid of a bunch of built in apps that were about as useful as tits on a boar hog. It came loaded with crap like HP desktops.
I wish the artcle would have mentioned a little something about the Amp Hour capacity for a single charge.
Originally posted by sonhouseit must be a dangerous hobby making a supercapacitor ..... might lightning bolt next doors cat or something ... i worked in a camera store ages ago and got a shock of one used for a flash and it sent me flying!
http://phys.org/news/2013-05-high-school-student-supercapacitor-young.html#ajTabs
Cell phone charges in less than a minute! Wins $50K!
Originally posted by e4chrisFlash camera's have evolved past the need for those 300 volt power supplies, now the flash is done by LED's running a few volts. No shocks from those dudes. Anyway, supercapacitors are only capable of holding a couple of volts, they break down with anything higher so there is not much chance of shock. You might ruin a knife though if you short out the contacts with a small knife, a very large current surge will go through the knife and maybe melt part of it. Kind of like putting it across a 12 volt car battery.
it must be a dangerous hobby making a supercapacitor ..... might lightning bolt next doors cat or something ... i worked in a camera store ages ago and got a shock of one used for a flash and it sent me flying!