Sansa clip wont power up unless hooked up to usb

Http://www.sandisk.com/media/175960/clip_um_0608_eng.pdf

Windows XP SP2
• Windows Media Player v10
• Intel Pentium class PC or higher
• CD-ROM drive
• USB 2.0 port for hi-speed transfers and charging

Make sure HOLD button is not on.

Battery
The Sansa
®
Clip player comes with an internal rechargeable battery. To use the player for
the very first time, remember to fully charge the battery. You can charge your Sansa
®
player through the USB port of your computer, a car adapter (not included) USB port, or AC
adapter (not included) USB port.
Charging
To charge the battery, please follow these steps:
1. Connect the larger end of the USB cable into an available USB port on the
computer.
2. Connect the smaller end of the USB cable into the Sansa
®
Clip player.
3. The computer must be on for most USB ports to charge your battery. Your
Sansa
®
will show connected and the yellow charging indicator will appear.
The battery level indicator will blink while charging. You will not be able to
play while connected to the computer USB.
4. To stop recharging, simply disconnect the cable.
The battery can also be charged using an AC adapter (not included) or a car adapter
(not included) and you will be able to play your device while charging with one of the
adapters.
NOTE: Some low-power USB ports may not be able to provide enough charge
power. Also note that the rechargeable batteries are not replaceable.