Apple ipod

Why does my iPhone only in the usual diversion and turn until you plug in a battery charger?

Everything must do is connect it to my iHome, computer, etc, and goes to work and fully functional. Why should we copy and will not turn on at random? How I can solve this problem?

This is probably a dead battery when the battery died, he continues to work on your computer, because its power through the use of computers.

HOW TO FIX YOUR IPOD TOUCH / iPHONE WHEN IT WONT TURN ON