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见页面support.apple.com/kb/TA266896. Question: Do I need to completely empty the battery before charging it,ipod touch4如何越狱 详细, and does doing this prevent the so-called "memory effect"?Answer: You don't need to empty the battery before charging it. Lithium-based batteries,ipod touch4 8g无wifi如何越狱, like those used in iPod,ipod touch3如何破解？, have none of the memory effects seen in nickel-based rechargeable batteries.8. Question: Is it better to empty the battery before charging it, or can I charge it whenever it's convenient?Answer: You can charge iPod's battery whenever it's convenient.10. Question: How long can iPod's battery keep a charge without being used?Answer: The standby time is 1 month when fully charged. After a month of not being used,Ipod touch3 如何安装免费游戏啊？, the battery will likely be fully discharged. You may find that the battery is empty before then,ipod touch2如何设置上网？, and that's normal. Even when it's not being used, iPod uses a small amount of battery power.Lithium-ion batteries need to be used for maximum performance. If you don't use your device often,ipod touch1代2.2.1固件已破解，如何升级至3.X固件, be sure to complete a charge cycle at least once per month. 到78App网站查看答复详情>> (责任编辑：admin)