Quote:
Originally Posted by Calenorn
So, what would happen to an e-ink reader if it were stored unused for a long period of time, perhaps several years. Let's say one is found, still in the original packaging, never opened, five or ten years after it was manufactured. Would it still operate normally? Is there a shelf-life on the battery or other components that is unrelated to use?
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Batteries are chemically active and need to be maintained at intervals.
Depending on the device model, the battery may be permanently connected (or shipped connected). (Translation: There is always a vry small load on them) Letting a battery remain Dead is very hard on it, to the point of failure or Leaking

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Contacts (component) oxidize. Without current flow/normal flexing , they become 'dirty' and less reliable.
BTW none of the above is specific to just e-ink devices.