My android phone charger charges and suddenly stops every time I plug in.

[AC Question]

I am experiencing a very strange problem with my android charger.every time I plug in the charger to my phone it charges for like 6-7 secs then automatically disconnects.now here is the strange part if you remove the charger from your phone and reconnects and starts charging and again the same,as stated above,happens.sometimes the charging duration raises to a few minutes too but it finally disconnects.
What I tried:-as the charger stopped charging I displugged and re-plugged the charger to the wall socket and found out that the phone did not start to charge.... Only if you disconnect it from the phone port and reconnect it even starts charging.
I tried charging my phone in different charger.and it charges fairly well....so there is no problem with my phone.now strangely the charger consistently charges a java phone that I have....(java phone has a battery of 1200mAh and the android one has of 3000 mAh).but the charger causes the same problem with my other android phones.
Now I do not get this problem.pls help

 

[nahoku]

It seems obvious to me that this bad charger can't source the current required to charge the android phones. Buy a new charger for your androids.