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Old 12-23-2010, 05:28 PM   #14
wolw
-= Balsa flies better =-
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Posts: 26
Karma: 1000
Join Date: Dec 2010
Location: Sweden
Device: Amazon Kindle 3, Kindle Voyage
Quote:
Originally Posted by gtriever View Post
Actually, it does. At levels at or below 2.5VDC, the batteries can "die" and cannot be safely recharged. Most devices with Li-Poly batteries will have a protection circuit built in to prevent discharging at levels less than 2.7 - 3.0VDC. I'm assuming the Kindle has that circuit as well, so you're partially correct.
2.7V under load (which the Kindle can't produce) was the norm four years ago, personally I wouldn't go below 3.0V. Below 2.7V under load will permanently damage your battery. 3.85V for long time storage.

Lithium Polymer batteries aren't affected by being loaded in a partially loaded state, but they do have a limited number of charging cycles before they start to degrade. If Amazon have done their homework it should warn around 3.1-3.2V.
Giving it a normal life cycle of ~500 ±150 charges it should last a while

Being a Electric Powered (EP) R/C model airplane pilot has its advantages

Peter

Last edited by wolw; 12-23-2010 at 05:32 PM.
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