Quote:
Originally Posted by rem736
i think this is the concern users are having with the type of charging system that the oasis adopted. regardless of whether the battery is lithium or lithium polymer, the number of charging cycles is about the same and limited. let's say hypothetically that the life of the battery is 400 charging cycles. with the oais' two battery system, even with the larger capacity battery in the cover, the number of charging cycles is the same. so if the cover's battery has twice the capacity of the battery in the reader, you only need to charge the cover once to fill the reader's battery twice. so by the time you get to the 200th cycle on the cover, you will have gotten to the 400th cycle of the reader's.
the cover's battery is still good. however, because the reader's battery is at the end of its cycle limit, you can no longer use the reader unless you can get a replacement battery for the reader.
the numbers are hypothetical, but the concept is accurate.
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Thanks for taking the time to explain the issue more clearly than I have. You've described my concern accurately; I'm not concerned about the battery in the case. I'm only concerned about the battery in the ereader itself.
Others seem to struggle to distinguish between the two and I'm now wondering if it's just technical ignorance on their part that explains why there hasn't been more substantive discussion on this.
Also, the ratio of device charges to cover charges is actually worse than in your hypothetical example. It's more like 3:1, which is completely consistent with the respective capacities of the two batteries.