On 29/08/2014 15:40, Johny B Good wrote:

Since mains outages are so very rare where we live, I can afford to
take my time over finding a replacement so have the luxury of keeping
my eye out for any suitable 'donor' NiCd (or NiMH) packs I might spot
in a flea market stall or junk shop. The original mempac uses oval
shaped cells (oval as in 'racetrack oval, that is!) which could easily
be substituted with round cells of the same diameter and length so my
choice of a donor battery is quite wide. :-)

Doesn't RS do them for ~£6 and at a local trade counter for cash they
probably won't ask too many questions. I can't recall what their minimum
order value is for mail order or try RapidOnline.

Regards,
Martin Brown