If you are going out somewhere leaving your mobile in charging,and yep you can't say when you will be return back..
so,upto then your mobile will be in charging even if its get fully charged,so why to waste the energy.....?
Here comes the new socket which will probably conserve energy and your gadgets too..
The socket plugs in between the wall and your gadget; tap the button on top of the plug to start the power flow. After a user selectable 30 minutes, 3 hours or 6 hours, the thing shuts off.You can use it for any electronics , rice cooker,heater,charger,and many other things you can add up.
If you like it,or have something in mind ask it..or pass by comment...!