That is a very good question actually. I am about 24uA at 3.6V, and tested the system 3.0V Lithium battery, and got 19uA. Now, I have not tested, but assuming (hoping) to get 15uA at 2.7V. But how I get 2.7V is the big question for me. 15uA in this case will be all I need. regards, Omer -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads