what app do you use? Alot of these CPU tuners require a custom ROM. But yeah, at work I don't get alot of signal(thick building/other factors). I get enough to send and receive texts half the time, so I don't just put it into airplane mode or turn it off. I know when the phone is searching for service it uses alot of battery. Away from work my phone lasts maybe 8 hours. At work about half that. How can I fix this?