[BBC-Micro] Batteries in a Master

[Pete Turnbull]

On 23/02/2007 20:41, rafg1 at bigpond.net.au wrote:
> Hi Kris and all on the list,
> 
> I have bought at least one Master from the UK, importing it into Australia 
> with only one battery (1.5 V Alkaline) and as I can best recall, it was 
> sitting in the same spot that yours was, Kris. The battery wires were quite 
> taught also, being barely sufficient to reach the plug site.
> 
> It retained its CMOS settings, worked properly and the seller mailed me 
> later when I queried this, saying that one battery was "sufficient".

That may be so with a new battery but the specs for the CMOS don't 
guarantee data retention under something like 2V, AFAIR.  The original 
battery was a single 3V AA-size lithium cell -- like an AA version of 
the button cells used in small devices -- and I suspect someone has just 
changed the cell.  The official Acorn replacement had two or three 
alkaline cells in one of two styles of holder, and was a free 
replacement when the lithium cells were recalled.

-- 
Pete						Peter Turnbull
						Network Manager
						University of York