windows - How can I update bios without battery?

I want to update BIOS to new version. While the update process executes, was given an error.
The error is : the battery must be charged above 10 before the system bios can be flashed

My equipment is:

    Laptop DELL Inspiron N5110
    Windows Technical Preview  
    Processor:   Intel I7 – 2630QM @2.00GHz   
    RAM      :   4 GB 
    OS       :   64-bit

The laptop's battery is dead. Is there a way to passing this step?