On Tue, 24 Sep 2002 22:30, Guy.Bormann wrote: > On Tue, 24 Sep 2002, Leon Brooks wrote: >> A battery of anything is a long row of them. So a D cell (or for that >> matter A, AA, AAA and C as well) is not actually a battery, but the >> little square 9V models and the ones in cars are.
> Not necessarily true! Although it is usually hard to see, A{A{A}} cells > sometimes clearly consist of a battery of small watch cell-like cells when > you look close enough to the casing. Not. I disassembled a fair few of them in my childhood, e.g. for carbon anodes for chemistry experiments. > In fact, I don't know of any > compound combination that produces an (electrochemical(*)) potential of > 1.5V! Carbon-Zinc does that nicely, and has done for centuries. Cheers; Leon