I did an experiment for the past hour. 1:41 PM Usage was 1 hour 35 mins Standby was 4 hours 37 mins 2:40 PM Usage was 2 hours and 37 mins Standby was 5 hours 36 mins How is it possible that my phone was locked and I didn't touch it, yet the usage went up by exactly one hour? I have nothing running in the background ? Is this normal? Should my usage have only gone up by say 5 minutes max? I see the standby went up correctly but the usage went up nearly the same.