Amiga 2000 battery ?

[FastRobPlus]

The battery on an Amiga powers the date and time clock, not the system's timing, so you can run an Amiga without a battery (as many Amiga 500 owners can attest!)

-----
EDIT
-----

D'oh!  Beaten to the reply!

[FastRobPlus]

-----------------------------------------------------------
A special note for A3000 users: The RTC has a small amount of memory also backed up by the battery which is used to store settings for the motherboard SCSI controller.
-----------------------------------------------------------

I wonder if that's why my Amiga 3000's floptical drive stopped being recognized?