Speedybee F405V3 Stack shut down at 20V | Betaflight | Page 1

ruby elbow Aug 2, 2023, 4:02 PM

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I have got a problem with my SpeedyBee F405V3 FC.
It starts to restart periodically after the input voltage exceeds 20V.
The 3,3V, 5V and 9V are perfectly stable at all times.

Connected to the FC is only the receiver (BetaFPV Nano 2,4GHz)

woven vessel Aug 3, 2023, 12:36 AM

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How new is the fc? Have you reached out to speedybee's support team?

ruby elbow Aug 3, 2023, 11:57 AM

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the fc is completely new, i have reached out to speedybee support and waiting for a response

next socket Aug 5, 2023, 8:28 PM

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curious how you know the problem is when its reaching 20v. i had issues with my f405v3 rebooting in midair during a flight, but ive never tried testing the voltage

woven vessel Aug 6, 2023, 5:49 PM

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It sounds like a problem at the ESC instead of the FC.

next socket Aug 7, 2023, 2:11 AM

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woven vessel It sounds like a problem at the ESC instead of the FC.

it was definitely the fc. the esc is working properly (i replaced the fc because i wanted to upgrade it to one that had 4v5 pads). im currently still using the same esc (i put the old fc back on after the speedybee fiasco) and its running great

the fc would reboot itself in midair, causing a crash. and when logging, the logs wouldnt even capture the crash because the fc would reboot, so theres no logs of it. swapped back to my old fc and everythings working properly like before

#Speedybee F405V3 Stack shut down at 20V