to charge OP-1 use the included usb-mini cable and connect it to a computer, or standard usb charger.
your unit will charge when:
- it is turned off and connected to a usb power source. (computer / charger)
- it is turned on and connected to a usb power source, unless usb charging has been turned off in the OPT menu. (shift + COM, 4)
- it is in TE-Boot menu and connected to a USB power source.
a spare usb-mini cable can be ordered here.