Question: The DS-4000 has a USB CHARG. option. Does that mean the batteries can be charged while the recorder is connected to a computer?

Yes, provided the following conditions are met:

  • The computer must be on.
  • The DS-4000 must be resting in its cradle.
  • TheA” side of the bundled USB cable must be plugged into a USB port or hub on the computer.
  • TheB” side of the bundled USB cable must be plugged into the recorder’s cradle.
  • The USB CHARG. item in the DS-4000’s SUB MENU must be set to ON.

Depending on the output capacity of their USB port(s), some computers may not be able to charge the DS-4000.  If a USB hub on the front of your computer fails to charge the DS-4000, try connecting the recorder to the computer via a USB port on the back of the computer.  These ports tend to have greater output capacity than ones mounted on the front of a computer.  If this also fails, use the AC adapter to charge the DS-4000 in its cradle.
Verification Source: Olympus Website