When I am at my country house, I have no service. If I leave my phone alone, it will suck the life out of my battery very quickly. I put it in "Airplane Mode", which turns everything off. Then I go back in and turn on my WiFi, as I have that at my home. I can go to my "Talkatone" app and use my phone over the internet and my battery is ALL GOOD. I still get my emails, but texts and sms do not come through until I go to town with "Airplane Mode" off.