You'll note that a useful service life of 500 chg/dischg cycles @ 90 days/cycle works out to ~ 123 years! I'm somewhat dubious about that :) but have Eneloops in svc three years now - The cells in low-drain apps (palmtops) show capacity down less than 1% (as indicated by the Maha charger) - Cells in high-drain app (single-cell AA flashlight, in daily use) are down ~ 8% capacity. Anecdotal quantities only, but think I'll buy some more before they quit making them... Jack --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .