Went to do full restart - pulled battery - discovered swollen on both sides - front & back. With all the talk on bent iPhones - so at lunch the other day with phone on table - I thought, well this is weird - it looks bent laying on it's back - rocking like a cup saucer. Quite obvious the battery is dorked - Wonder if warrantee covers this. So this is why they have plastic back snap on cover. Imagine that force restricted in hard shell. Actually a little surprised it makes decent connection to run the phone. A video of it on flat surface - rocking on both sides - is the only easy way to see it. Maybe tomorrow. If I had to speculate - Hot - while charging - on the couch - ends up related to a post made a year ago. Sudden Battery Issue Android Forums at DroidForums.net Apparently - a minor update at the time.