Quote:
Originally Posted by barryem
The Oasis internal battery is 1/6th the size of the Voyage battery. I think I remember that correctly although it's been a while. A lithium polymer battery is typically good for 500 to 1,000 full charges. Devices with similar power draw will wear out a small battery by using up it's charges more quickly than devices with large batteries.
From that it's a safe bet that the overall lifetime of the Oasis will be about 1/6 that of the Voyage. The fact that the Oasis has a cover that contains a charger isn't part of this calculation. From what I've read it's probably not that difficult to replace the Oasis battery so it might not be quite as bad as it seems.
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It's a safe bet that you're wrong, simply because the three-year extended warranty includes a free battery replacement, just as the Voyage's does: if they had to pay out on that a lot, they'd lose money. The Voyage battery definitely does not last eighteen years!
In practice, the Oasis's normal use pattern involves a lot of very shallow discharges of the case battery. I think I've gone below 40% only three or four times, and most of the time it's around 60--70% when it gets chucked back in the cover for another top-up. Li-ion batteries last a *lot* more charging cycles if the cycles are shallow. Really a lot more. High thousands to tens of thousands. "Effective infinity", in practice, because some other component will fail first...