I'm waiting in the cell phone waiting lot at the airport to pick up my neighbors. Something is wrong since they have no luggage and it has been over 30 minutes since their plane landed. I start to call home to check if I have the right date. It is then that I notice I have no bars. In a semi panic mode I drive to the pickup area and catch them just as they were leaving to catch a taxi. Even when I get home I still have no bars. After rebooting I now have bars but my battery is at 27%. It was fully charged this morning. Nothing is running on the phone to drain the battery. Virus check is OK. Any ideas what may have happened? I'll be keeping a close eye on it the next couple days.