In the course of researching my Kindle 2 purchase, I read a claim by an Amazon spokesperson that after ten years, the battery should still be able to hold 80% of it's original charge (I don't have a link, but am going to try to locate the article again). I suspect a huge load of salt should be applied to that claim, but even if it is 50% after ten years, that's not too bad. If ebook readers behave like other consumer electronics have, in five years we'll be able to buy something three times as good as what we are seeing now for $50, (statistics made up on the fly by me) so I'm not in a panic about it.
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