SmokChsrWho let the magic smoke out?Premium
Saint Augustine, FL
reply to pulsar777
Re: Amazon Kindle 4 battery I don't know about the Kindle specifically, but as you describe it, the Kindle is the same as most. Which is the battery circuit is cut off completely below a certain point. Up until then the battery is still connected to the device which is still drawing a very minimal amount of current, mostly just enough to keep the turn on circuit active.
While it's not good to let the device remain in cut off mode for an extended period of time, in this case it would appear that you did recharge it prior to any damage to the battery occurring.
If the Li-ion battery gets too low it will not want to recharge at all.