Quote:
Originally Posted by gruundehn
I am not familiar with that technology. Does the device have to be part of a circuit or can it be left by itself? If it has to be part of a circuit, it is a capacitor. If it can be removed from the charging circuit and stored, it is a battery.
The function does not change even when the technology does.
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'Battery' and 'capacitor' are not as abstract terms as you seem to want them to be.
Also, a capacitor
can be removed from the charging circuit and stored. They do tend to lose their charge over time, though that might be more a feature of modern tiny ones than bulkier types like leyden jars. But then some electrochemical batteries also break down in storage...