I did a test with my iphone by charging it completely, turning off Bluetooth, Wifi, and checking .mac mail manually. My battery only lasts in Standby about 12 hours before telling me it has 20% of life.
that certainly isn't normal. are you sure you didn't throw in internet browsing or video watching in there as well? i hardly used my phone yesterday, and the charge was nearly full after 12 hours of standby.
I recall doing a couple of SMS messages and thats about it. I'm going to do another test, charging it right now. Going to see how the battery holds after charged, not going to use it at all. If it goes bad I'm going to Apple store tomorrow.
that certainly isn't normal. are you sure you didn't throw in internet browsing or video watching in there as well? i hardly used my phone yesterday, and the charge was nearly full after 12 hours of standby.