In my few years of owning Ipods of various types I have always tried my best to take good care of the battey that is locked inside. From what I have come to understand about lithium ion batts is that it is always best to keep them charged and that letting them "die" is the "worst" thing to do to them other than sticking them in the oven. I have seen many threads about batteries on these forums. Many saying that the battery life improves after a few full charges and discharges. I am fairly sure I am seeing this effect on my 3g. my question, Does it hurt to run the battery down until it shuts off on its own? I would like to continue a few more good cycles before I start charging it all the time here and there. I just wanted to know if it was better to let it "die" or to just run it below 10%?