Rockbox mail archiveSubject: RE: Irritating Sansa E200 Low Battery failure to boot
RE: Irritating Sansa E200 Low Battery failure to boot
From: Mark Ganson <mwganson_at_hotmail.com>
Date: Mon, 23 Feb 2009 20:39:29 +0000
> Date: Mon, 23 Feb 2009 12:50:51 -0500
Based on what I've read about Lithium-Ion batteries, this is actually to protect the battery. If a Lithium-Ion battery, like the ones used in the Sansa e200, should ever become completely depleted it cannot ever be recharged again. This has something to do with the fact, as I understand it, that the charging circuitry requires a certain amount of feedback from the battery in order to prevent overcharging. In the case of Lithium-Ion batteries, overcharging results in overheating results in fire results in potential property loss and death, so it is a very serious safety issue.
The automatic shutdown when the battery gets to a low threshold point is there for that reason. While it's true the message and shutdown can be annoying, imagine how annoying it would be if you had to go out and buy a new battery every time you accidentally allowed it to go completely dead.
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