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- Arrma RC's
- BigRock 4x4
- Kraton 6s
- Outcast 4s
- Outcast 8s
Failsafe is great, but once the RX powers down from low voltage (brownout) then failsafe doesn't work. Some use the throttle return springs that pulls the servo back to idle but some servos are stubborn and won't rotate since servos are designed to be turned from the inside out. The best bet is to use a telemetry based transmitter that tells you the rx voltage, something you can set an alarm on to alert you the rx battery is getting low.Don't modern radios have fail safes now? I remember on many of my radios you could set the failsafe to prevent a runaway.