I have quite a few batteries
in my collection, or to be precise many "cells" as
the word "battery" implies several cells in series
(or parallel I suppose, being extra pedantic).
The most recent acquisition
is a pair of dry cells which I understand were removed from an
old radio and put on display in the window of a radio shop in
Harlow, Essex until the place closed recently after 35 years.
Surprisingly, both cells have
around 1.3 volts across their terminals.
I'll dig out other dry cells
in my collection and photograph these as well.
I'd be interested in hearing
from anyone that knows the period in which these Siemens cells
I found these images on the
NET, but no picture of the Siemens factory at Spennymoor so it
clearly wasn't photogenic...