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Author Topic: Betaflight showing 0v when battery plugged in  (Read 618 times)

ali101

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Betaflight showing 0v when battery plugged in
« on: December 25, 2020, 03:35:26 PM »

Hi guys,

When I plug in a 4s lipo to my omnibus F4, I get 0v on BF and on my OSD. Even though I have checked with props on, but still get 0v.

My FC does work, as I can spin up the motors in BF.

Any ideas why my voltage isnít being read?
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FPVSteve

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Re: Betaflight showing 0v when battery plugged in
« Reply #1 on: December 28, 2020, 12:02:45 AM »

https://github.com/iNavFlight/inav/issues/3345

Quote from: shellixyz
in both of your config dumps you have vbat_scale set to 0. Start with the default value (1100) you should get a reading close to reality then calibrate the voltage to get an exact value. Increasing it increases the voltage reading.
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ali101

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Re: Betaflight showing 0v when battery plugged in
« Reply #2 on: December 31, 2020, 11:15:50 PM »

Thanks for your reply, but Iíve got my VBAT scale set to 110 (assuming the post meant 110 not 1100, as for me it only goes upto 255)

Here is a picture of my FCs wiring diagram, is there anything I need to connect apart from B+ and B- to get battery voltage to show?



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