Well, do you use leave it on for a long time? I generally use 2-3 times a week on the phone, at most 30 minutes. I do occasionally browse a couple Youtube video

Well, do you use leave it on for a long time? I generally use 2-3 times a week on the phone, at most 30 minutes. I do occasionally browse a couple Youtube video (short one though). I usually end up with 50MB~100MB.