Updating BIOS failed because it says computer needs insert system battery.

I was updating the BIOS for my Toshiba model number L755-55158 and it downloaded the update fine and when it was going to install it says insert system battery. The computer is plugged into the power outlet so it is not asking for the battery that powers the computer. I think it is asking for some battery that I am not aware of. This computer is very new, I bought about a week ago. So why is the BIOS not updating from Toshiba Service Station? Is a BIOS update crucial?

I think that the Bios update is just wanting to make sure that there is almost no chance of the computer failing during the Bios installation. So it is asking if the main battery is installed and fully charged prior to running the Bios update. Beyond power cord and the fully charged battery being in the computer, I would also want to make sure that no other programs are open or unsaved files. Once while doing a Bios update, I had a Word document open. Without giving me a chance to save and close, the Bios update rebooted the computer. Lost only a few minutes of work, but it was annoying.

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