I have an application where I need to burst out up to 3A at 7Vish for 10mSec, so either using some AA in series, or a 9V. The question I am trying to determine is how much burst current I can get out of a battery before it gives up. I was also thinking perhaps using some sort of capative disharge circuit. The burst itself will be gated using a FET. Has anyone done any research on this? -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist