I was just looking at that video, and did some research and as usual eBay is your friend... http://www.ebay.com/itm/Maxwell-3000-Farad-Ultracapacitor-Supercapacitor-Su= per-Ultra-Capacitor-USED-/370578012182?pt=3DLH_DefaultDomain_0&hash=3Ditem5= 6482bb816 I came to the conclusion that aside from the obvious I couldn't really come up with an interesting and not too time consuming project (I'd love to add regenerative braking and stored energy acceleration to my scooter but...) for them. I did consider a pulse laser gun... DougM On Sun, Feb 12, 2012 at 1:26 PM, V G wrote: > On Sun, Feb 12, 2012 at 4:26 PM, V G wrote: > >> Here's an interesting video I found that shows a guy shorting 2600F >> ultracapacitors in different ways. >> >> A few questions: >> >> 1. I know that these things have extremely low ESR and can therefore >> deliver an enormous power output. Considering that one has normal skin (= not >> too dry, not wet), how dangerous is one of those capacitors charged to 2= ..5V? >> >> 2. Approximately at what voltage does it start becoming dangerous? >> >> 3. Anyone know of a cheap source to buy these things? >> > > Whoops, forgot the video: http://www.youtube.com/watch?v=3DEoWMF3VkI6U > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .