So I fully charged my iphone 5 running ios 7 in hoping to give it another battery test. I've been using it for almost an hour, and I've been surfing on Safari over wifi and listening to music at the same time. When I look at my usage stats however, it says my phone has been 50 minutes usage and 50 standby, even though I've been surfing and listening to music concurrently. So does this mean the phone will recognize that one process is considered idle and the other active? I always just thought they would be lumped together as actual usage. And how does this affect the battery life?