Thread: PRS-650 Concern about charging the battery via USB
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Old 01-28-2011, 05:14 AM   #25
Pinecone
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Join Date: Nov 2009
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Device: PRS-650, PRS-600, PRS-350
It is not only the lithium, but the lithium polymer cells used in cell phones and readers also contain a bit of a flammable solvent.

So the combination can make for an impressive condition.

But yes, lithium cells are very senstive to over discharge.
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