11-24-2014, 09:29 AM | #1 |
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In the Vault
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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11-24-2014, 12:03 PM | #2 | |
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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 . 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. |
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11-24-2014, 12:51 PM | #3 |
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Got it. So, second question: to keep a device for as long as possible, how often should it be turned on? How often should the battery be recharged?
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11-24-2014, 02:47 PM | #4 | |
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Specifically some of your questions are answered here: http://www.apple.com/batteries/maximizing-performance/ For long storage you generally want to keep the device around a 50 percent charge, in theory. |
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11-24-2014, 04:02 PM | #5 |
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11-24-2014, 10:34 PM | #6 |
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The charge you need to maintain, but do you ever have to turn it on?
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11-25-2014, 11:46 AM | #7 | |
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Calenorn, you are welcome.
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I would think that every six months when you go to push the charge back up to around 50% it would be a decent idea to power up the unit for a few minutes. Can't imagine it would hurt. |
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11-25-2014, 12:01 PM | #8 |
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A well looked-after lithium battery has a typical lifespan of around 5-7 years, so I'm afraid your 1000 years is a tad optimistic .
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11-25-2014, 03:10 PM | #9 |
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11-25-2014, 03:24 PM | #10 |
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Hmmm. I must have misread it. I could have sworn that it said 1000 years .
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11-25-2014, 04:46 PM | #11 |
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This reminded me to charge my spare Kindle DX, thanks.
I've now made a recurring calendar entry to do that every 2 months - got to keep it ready as they aren't making any more. |
11-25-2014, 04:56 PM | #12 |
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I've read that taking out the battery and storing it in the freezer makes it last longer.
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11-25-2014, 04:58 PM | #13 | |
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Quote:
I use all of my readers, even the one I don't like, at least once a month. I have had the dying or leaking battery in devices unused for a long time, or devices (laptops ) always plugged in and fully charged. I think regular usage (charge/discharge) is the best way as at least you will know when something starts to fail. But chances are every battery is unique. Helen |
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11-26-2014, 10:14 AM | #14 | |
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I've NEVER had a lithium battery last longer than 3-4 years without starting to lose charge capacity. Ever. And general testing of lithium battery technology bears this out. |
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11-26-2014, 10:27 AM | #15 | |
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My iPhone 4 is four and a half years old now, and its battery probably has half the capacity it did when new. |
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