Quote:
Originally Posted by rashkae
2 - 3 years is/was the expected life of laptop batteries... Not only was battery tech less refined when those estimates were common, but laptop batteries are often used in the worst possible environment for LiOn,, (kept at a near full charge and at heated temperatures when the laptop is in use.)
Devices that do not generate heat and do not cycle charges over 2-3 days should last twice as long easy.
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So 4-6 years, and this device is four years old and still alive - just draining more quickly than when it was new. It's pretty typical of my experience with e-ink readers. I think we may also not notice it as readily as with a laptop battery, because the battery life is so long already.