pile or battery? 09:16 Dec 23, 2010
In France a "pile" is invariably small(ish), and often cylindrical. "Pile" is a bit of a misnomer, and probably dates back to the grandfather of all batteries, Volta's "voltaic pile", which was literally a pile of alternating zinc and copper discs separated by an electrolyte. However, a single 1.5V "pile" is not a "pile" but a radially symmetric 2-electrode system (carbon and zinc in the old days). The little 9V PP3s ARE piles, though. Just to confuse things even more, an "accu", or accumulator, is not what we used to call "accumulators" in the past (which were invariably, but not always, lead-acid cells) has the same size and shape as a small "pile", but is simply rechargeable (NiCd or NiMH). Here, "battery" is perfect! |