> A logical conclusion is that with NimH, if you have control over battery capacity, then by specifying substantially higher capacity than needed initially and then using it very conservatively you get lower whole lifetime costs AND better performance Interesting. I have 12 - year old Sanyo cells still in service. Roughly 1/3 of the original class... Jack --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .