NOV5471 Novak Smart-Stop LiPo Cutoff Module, 4 Cell. For racers and bashers alike, the Smart-Stop Module will prevent your vehicle from draining your Li-Po packs below their safety level.
 The Smart-Stop Module connects between the receiver and speed control, and is easily set up with a One-Touch Set-Up button to learn the ESC’s settings for accurate and complete control. The Smart-Stop Module will interrupt the ESC’s throttle operation with short periods of throttle blipping. This is a warning that the Li-Po battery voltage safety level is approaching, giving the user a chance to bring in the vehicle.
 In addition, the remotely-mounted, ultra-bright blue LED will begin to flash, giving a clear visual cue that it is time to stop the vehicle. If the vehicle is run beyond this warning period, the Smart-Stop Module will bring the motor to neutral while leaving full steering servo control.