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2.3.4 Battery Voltage Display
The battery voltage level is always displayed on the status indicator line (bottom line).
The displayed battery level shows the terminal voltage of the battery, not how
much power is left.
The battery voltage level varies depending upon the operation of the BHT, so the
displayed level also may vary.
Battery voltage level
Shows the current battery voltage level.
Displays when the voltage level is high.
Displays when the voltage level is low.
Status Indicators