Quote:
Originally Posted by frankz
On a lot of Android devices, 0% is really about 10%-15% to prevent physical damage to the battery. Don't know if the Fire does that as well.
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Yes, this is common. The cells themselves should never be discharged too much or charged too much - but the devices enforce that. Obviously you shouldn't continually keep using up juice by spending a half hour trying to turn it on when it tells you it's too low to turn on - but the presence of that message is evidence of its own protection!
Go ahead and run it till it turns itself off. But I doubt this will help you. Because you said the light comes on brighter when it's really charging, it sounds like you have a small physical short and you'll need a replacement.