Quote:
Originally Posted by barryem
It's really just a matter of luck. The problem with lithium ion batteries is that if they get so dead they have 0 charge and you apply a charge to them they catch fire. So they all contain circuitry that prevents them from accepting a charge when they get that low. At that point they're goners.
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There is a very slow emergency charge mode that is used if the battery circuit is dead, but it's
slow. You might need to wait days or even a week for the thing to get enough power to do anything visible, but eventually things will speed up again. (Unless the battery is really, truly dead, which is possible: complete discharge can cause internal shorts, and the battery is a goner then.)