Note: If you have an iPod shuffle, find information about the battery charge status icon in this article.
The battery icon on an iPod screen indicates the state of the internal battery. If the iPod is awake, a small version of the icon appears in the upper right hand corner of the display. If the iPod is asleep while being charged, a larger version of the same icon appears in the center of the screen. The images below depict what different iPod models display to indicate that the battery is charging.
When the charging has completed, different iPod models will display one of the images below to indicate that the battery is fully charged.
When an iPod is disconnected from the power adapter or from your computer, the black or green bar in the icon indicates how much charge is left. The indicator may take a few moments to accurately reflect the remaining charge after being disconnected. While in use, if iPod's battery is nearly discharged it may display one of the images below
Low Power, Charging
If iPod's battery has been fully or nearly discharged, one of the screens below may appear when iPod is connected to your computer's USB port. In this state, iPod is not able to connect to your computer or appear in iTunes right away. iPod may need to remain connected for up to 30 minutes before it has enough charge to turn on. Your iPod can be charged more quickly with the optional Apple USB Power Adapter.
After about 14 to 28 days of no use, the battery will need to be charged. Click here for tips on battery usage.
The iPod battery can't be removed, but Apple can install a replacement for you.
Note: Rechargeable batteries have a limited number of charge cycles and may eventually need to be replaced. Battery life and number of charge cycles vary by use and settings.
For more information, see these documents: