Thread: Aura HD Aura HD - worth it now?
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Old 05-31-2017, 10:38 PM   #10
Cluey
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Quote:
Originally Posted by meeera View Post
These have been sitting on a shelf for over two years. I wouldn't buy one. The battery is likely to give out soon.
You can't make claims like, "The battery is likely to give out soon," without something to back it up.

Quote:
Manufacturers take a conservative approach and specify the life of Li-ion in most consumer products as being between 300 and 500 discharge/charge cycles.
That quote is from this article from Battery University. If you read through the article you'll see that it might have lost up to 10% of it's brand new capacity by being stored for two years. The chart indicates 4% a year at 25C.

Something you'll also learn from reading that is how often you should charge your device. The battery will last longest if you use it until about 65% of its capacity and then charge it back up to 75% of its capacity.
I doubt many of us do that with our mobile devices, not just your Ereader but your phone/tablet/laptop or any other device you have using Lithium based batteries.

Personally I'd have no problem buying a device like that, even a manufacturer refurbished one if it had a warranty. The price saved by buying it at that price would cover the cost of replacing the battery.

From a World View level that is much better than letting it end up in land fill, unfortunately that seems to be the modern attitude to things which aren't the latest model. However unlike phones/tablets/laptops the performance of an Ereader isn't as important. They've become so popular because of the better reading experience, especially in direct sunlight, also battery life is much better than LCD based devices.
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