Apple iPod shuffle - About the iPod shuffle Battery

About the iPod shue Battery
iPod shue has a rechargeable internal battery that should be replaced only by an
Apple Authorized Service Provider.
For best results, the rst time you use iPod shue, let it fully charge for about three
hours. The battery is 80-percent charged in about two hours and fully charged in
about three hours. If iPod shue isn’t used for a while, the battery might need to be
recharged.
You can sync music while the battery is charging. You can disconnect and use
iPod shue before it’s fully charged.
Charging the iPod shue Battery
You can charge the iPod shue battery in two ways:
Connect iPod shue to your computer

Use the Apple USB Power Adapter, available separately. 
To charge the battery using your computer:
Connect iPod shue to a high-power USB 2.0 port on your computer using the B
included iPod shue USB cable. The computer must be turned on and not in sleep
mode (some Mac models can charge iPod shue while in sleep).
When the battery is charging, the status light on iPod shue is solid orange. When the
battery is fully charged, the status light is green. In iTunes, the battery icon next to the
name of your iPod shue also shows the battery status. The icon displays a lightning
bolt when the battery is charging, and a plug when the battery is fully charged.
If iPod shue is being used as an external disk or is syncing with iTunes, the
status light blinks orange to let you know that you must eject iPod shue before
disconnecting it. In this case, your battery may either be still charging or fully charged.
If you don’t see the status light, iPod shue might not be connected to a high-power
USB 2.0 port. Try another USB 2.0 port on your computer.
If you want to charge the battery when you’re away from your computer, you can
connect iPod shue to an Apple USB Power Adapter, available separately. To purchase
iPod shue accessories, go to www.apple.com/ipodstore.
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Chapter 2 iPod shue Basics