I didn't start the arguing Bob. I've never heard of any problems and that's how it is!
I just drove to Gloucester which is 35-40 minutes away and my daughter had a high resolution game playing all the way there.
When we got there I checked the battery level worried that she'd used loads and it was 97%!
40 minutes of high quality graphics and sound and only used 3%?
Hardly seems a problem...
I also spent half the day faffing on facebook, took some pictures and she played a game all the way home, and it's still on 64%!