Originally Posted by
peter9477 There's some room for debate about whether going to 0% is a good idea. It is well above the point where any serious damage to the batteries would occur. There certainly are instances, however, of people who've let it shut down at 0% and then had some difficulty getting it restarted. Having done that dozens of times on multiple units, I have no concerns about it personally. If you're somewhat nervous about it, and certainly if you're a technical "noob", it would be best if you recharged earlier. That said, if you hit 0% and it shuts down, and you put it on the charger and it restarts just fine, then have no fear that you've done anything wrong or damaged the device, because you have not.
As for continuing to use it below the 9% (or 8%, or whenever you get it) warning, absolutely feel free to do that. If you're almost done your movie, or want to keep playing that game for another half hour, or whatever... go right ahead and do it. The warning is merely to remind you that you might not have too much time left, but it's in no way a warning of impending damage or anything bad like that.