Dell Studio XPS 1647 :: Battery Not Recognized - Cannot Update BIOS

When I boot up my PC it comes to a screen expressing that the battery is critically low and the AC Adapter cannot charge properly, press F1 twice to continue.

The computer continues to boot up fine, but is running strictly off AC power.  It boots up the same with or without the battery locked in.  I even bought a used, but guaranteed functional battery and it had the same result.

After researching a lot online I saw a common solution is to update the Bios.   Currently my system has Bios A01, and I have tried updating to A07, A11, and even A00 without luck.  When running the executable in Windows 7, just before it flashes the system with a new bios I get fail message saying operation cannot complete because AC Adapter and battery must be present and functional.

So I found a guide online to create an MS-DOS startup boot drive, along with the Bios .exe's which can be run from MS-DOS.  The system booted up into MS-DOS mode fine, but I received an error running the .exe, "Cannot run in DOS mode". I also tried to run the .exe with the /forceit command afterwards with no luck.

So at this point I don't know if my laptop simply needs a BIOS update, or if I have a faulty motherboard or battery sensor. 

Ideally I'd like a solution to upgrade the bios without a battery that works and can resolve my problem.  But if we can't find a solution, I need to know what needs to be fixed so I can repair my laptop through Dell's Out of Warranty Repair service.