Scott Fraser wrote: >> 1V * 220mF / 1uA = 220Ksec = 3.7Khours = 152 days > > Olin - woops, you missed a division there > >> 1V * 220mF / 1uA = 220Ksec = 3.7Kminutes = 61hours = 2.55 days Right, sorry. However, leakage is still probably the limiting factor and needs to be investigated. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads