I have a Dell B130. About 6 or 8 months ago the battery light started flashing amber and the battery was fully charged. I unplugged the power supply from the computer then plugged it back in and it stopped flashing for awhile. It doesn't do it all the time and it doesn't do it when the battery is out of the computer. I've tried everything. I replaced the battery and the a/c power adapter both with new OEM equipment. Needless to say this didn't fix the problem. So then the next thing was replacing the power jack. This didn't fix it either. I was then told it was the mainboard causing the problem so then I had the mainboard tested and it tested fine. We went as far as downgrading the bios to the original version and wiping out the bios master password. Didn't fix it either. Dell was no help and said they had never heard of any of their systems having this problem. Does anyone out their have the solution to this problem? I would really appreciate it.