Isaac, there are LEDs on the Throttle-Tech controller for status information. The orange LED is a voltage alarm status. Briefly, it is able to toggle between monitoring the receiver bus voltage and the motor battery voltage. When there is no motor battery connected, the displayed status reflects the voltage at the receiver bus to power them. When the motor battery is then detected, normally after the receiver has been powered up, there is a brief, cadenced flashing sequence to indicate it is flipping from displaying the receiver voltage status to the motor battery status. If you start out with the motor battery connected, you will miss the opportunity to see if a low voltage alarm situation may exist for the receiver. For a more complete description of how this works, you can read about it in the Throttle-Tech Users Guide, available at
www.tech-aero.net.