Am I the only person who gets annoyed at the way almost every *cell* is described as a 'battery' these days?
I understand it - "cell" has quite a few other common uses these days (biological, idealogical, telephony, imprisonment, structural, ...) whereas "battery" doesn't really. It's almost never used to mean a group of things any more and other than 'assault and battery' most people haven't heard it used in other ways.
That said the scientist / literalist part of me still gets a little annoyed every time I see 'battery' used in place of cell. I remember other students getting a right old telling off if they confused the two in science class. I only did it once.
It's a shame that we don't have another commonly used word for electrical storage unit other than cell or battery IMO. Still, the definition of words changes over time and I've been around for a reasonably long time.