> ... The two cells are roughly C-sized nicads. This made me > wonder if a couple of ultracaps might be a reasonable > replacement. They might survive periods of disuse better... > > Back of the envelope says that's liable to work like a charm! > Near instant recharge, too, with the right charging circuit. > > Supercap cycle estimates tend to be in the 10^5 - 10^6 range, > too. > > Of course I chucked an old Wahl cordless not long ago... > > Jack However, if I recall correctly, ultracap energy density by volume and/or=20 mass is about 1/10 of a decent battery. -- Bob Ammerman RAm Systems --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .