I just got a new battery for my Dell Inspiron 5593 laptop, but it will not charge. I plug in the adapter and the indicator light next to the port briefly comes on then goes off. If I keep it plugged in, the charge on the battery pretty much stays where it is at, around 55%, which I assume is the charge left from the new battery itself. It is like it is holding the charge, but it won't actually charge it. Why won't the indicator light come on and charge the battery?