When placing in the charging base htc rhyme gets extremely hot

I am having the htc rhyme and what I find is that htc rhyme gets hot when placed the phone in the charging base. And it really get hot specially at the back under the camera, so I would like to know what is the reason behind this and how can I reduce my phone from getting hot. Also want to know does it happens with your htc rhyme also.

Even mine gets hot while keeping the phone on the charging. And I’m not getting what may be the reason behind getting the phone too much heated while charging. And sometime I feel it don’t get busted as I have seen some of the cases of phone get busted up while getting overheated.

According to me most of the phone gets hot while charging. And it’s not the phone gets heated up it’s the battery and I don’t know the exact the reason behind why phone get heated while charging but I can advice you that you can avoid heating up the phone from by keeping the phone screen upside down as I did it and after that mine didn’t got heated much