I understand that you are inquiring about the motherboard keeping the settings in BIOS after a power failure when the battery is discharged.
In regards to your inquire, the battery is designed that in case of a power loss, the motherboard CMOS will sustain the settings. In case that the battery is discharged, it is expected behavior to have the motherboard return to the default settings that in this case it is after power loss keep shutdown.
Now, if you specific needs require that the motherboard will keep this option to boot after power failure, you can modify the BIOS using the Intel(R) Integrator Toolkit and changing the option to the default being enable.
I changed the default setting already(see above) but the mainboard is not booting anyway. I have to to power on the board manually.