GReddy FATT Full Auto Turbo Timer - Manual (Page 15)

Battery Mode
Battery Voltage Display Mode
14
This feature displays the "real-time" battery voltage.
There is a voltage warning feature that can be turned on and off.
The warning buzzer and the back light will flash when the voltage
exceeds the set voltage.
(1) To go to the Battery Mode from
Countdown Mode, press P+S+T
buttons and release S button first.
(2) V will display with the " real-time"
voltage.
"Real-time" battery
voltage will display.