Supplying power
The R12 can be operated using power from a power supply connected to the USB port (AC adapter, USB
bus power or mobile battery) or AA batteries.
A power supply connected to the USB port will be used instead of AA batteries when available.
Installing batteries
To operate the R12 using batteries, press and lift to open the battery compartment cover on the
bottom. Then, insert 4 AA batteries.
NOTE:
• Use only one type of battery (alkaline, NiMH or lithium) at a time.
• The remaining battery charge is shown on the display. (→ Control Bar overview)
• Set the type of battery used correctly so that the amount of remaining battery charge can be shown
accurately. (→ Setting the type of batteries used)
• If the indicator shows no remaining battery charge, turn the power off immediately and install new
batteries. The remaining battery charge is always shown (on most screens) when operating on battery
power.
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