Date   : Thu, 16 Aug 2007 16:59:18 +0100
From   : julesrichardsonuk@... (Jules Richardson)
Subject: The ""other" M128 battery location...

Mike wrote:
>> All my machines have it, so I assume it's present on every Master.
>>
> This is where the original attempt at a backup bettery went. It was a
> lithium battery, and IIRC some problem  reverse charged it, causing some to
> catch fire. Whether this only occurred under fault conditions or with
> certain batteries I do not knw.

Interesting - I'd heard the fire story many a time, but I'd always assumed 
that the battery lived somewhere down beside the keyboard like the sealed AAA 
packs do. First time I'd noticed the terminal labels in the plastic moulding...

> The original is on page 243 of the Master Welcome guide, (the one with the
> cream cover).

Ooh, so it is. (And cream cover? I thought they were all a fetching yellow ;)