Cowon S9 User Manual page 13

Before you start!
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Power Connection / Charging
For charging COWON S9, you should use the USB cable to
connect the player to a PC or a charger.
PC
1. Connect between PC and USB/EXT port using the USB cable:
The battery will be fully charged in about 5 hours.
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COWON S9
2. To charge via the USB Power Adapter (optional accessory),
attach the USB cable to the power adapter and the other end
to the USB/EXT port on the player. The battery will be charged
in approximately 3 hours.
- When charging the player for the first time or the player has not been
charged for an extended time, fully charge the battery before use.
- COWON S9 has a built-in Lithium Polymer battery. To prolong the life of
the battery, it is recommended that you charge the device frequently, as
opposed to fully discharging and then charging the device.
- When connected to a USB hub, the player may not charge. Please try
connecting the player directly to a USB port on the PC.