Thinking that I could use one to drive a small DC motor, like a BEAM device= , I bought 4 super-caps from Ebay called "Coin V FITN 5.5V 4F Farad Ultraca= pacitor." They are about the size of a 2=80 coin. =20 Later I learned that it has to have an internal impedance of less than 10 o= hms before it will work. Though non of my Googling turned up any info on t= hat particular part. Would this cap work for me? If so, how can I charge it so I can "play" with it? I have a bench power s= upply, 30V 1A. On a youtube tutorial video I saw a guy charge some superca= ps and had a multimeter connected to watch it charge, but on the video I co= uldn't see how he had it connected. If they won't run a DC motor, what can I use them for? =20 Thanks as always, and happy holidays. Lindy --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .