I'm using an AGS setup (HDD+dongle), so I presume I should not to worry ;-) ...but I'm still wondering what will happens when battery will die. The best scenario would be no BIOS error message (or just displaying the calendar date error) and boot whatever this issue... or at worst the BIOS error...
Long time arcades games collector, I'm coming here because I see some interesting topics regarding the Taito Type X2 system, which is the heart of my beloved DariusburstEX cabinet <3