My laptop was working very good, it wasn't having any charge related issues..don't know what happened? all of a sudden one fine morning...it got off soon after i just unplugged the adapter from the socket and this situation is still getting repeated...is it because of the above related issues or some other problems? i need immediate help and please help me as soon as possible...do i need to change the battery? i am using dell laptop inspiron15 model...kindly help me.