My Dell Studio 1737 laptop battery is at 23% charge left and the only way to keep it running is to keep the power adapter plugged in. When I plug the adapter in, the battery meter in the taskbar says that its plugged in, but not charging. The adapter itself has some damage on the part where you plug it into the laptop, the cord is slightly ripped. Also, when I plug it in the blue charger light stays off until it is at a certain angle. I'm not sure if the battery will not charge or if the charger can't charger the battery. Please help thanks!