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Press the yellow Magnification button to step through the
magnifications levels.
Press the blue Color Select button to step through the color modes.
The battery indicator LED is flashing red.
Charge the NiMH batteries, or replace the AAA alkaline batteries. (Do
not mix battery chemistries.)
If you replace the rechargeable batteries, be sure to use 1000 mAh
NiMH batteries.
The battery LED is solid red while the power adapter is connected to
RUBY.
A battery error has occurred. Unplug the power adapter from RUBY and
plug it in again.