The original power supply for the R-09 and R-09HR was the PSB-6U. Note that the PSB-6U is out of production and no longer available. It has been replaced by the UDC-25, but it is also discontinued.
Caution:
- Using any other power supply can cause malfunction and/or permanent damage to the unit and is not recommended.
- The UDC-25 supplies power to the R-09HR, R-09, R-05, or VT-12 from USB bus-powered devices such as a computer. It can also be used with a universal USB wall charger connected to a wall outlet.
For users unable to obtain either of the AC adaptor or the UDC-25: The R-09HR can be powered by the following batteries:
- Alkaline dry battery LR6 (AA) type x 2
- Nickel Hydrogen battery (HR15/51) x 2