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By default you can only get the total battery voltage with Crossfire telemetry. Here’s an easy trick to get averaged cell voltage from telemetry, so you don’t have to do the math in your head.
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In fact Frsky offers this option, it’s the A4 Telemetry Sensor
, however Crossfire doesn’t have this, fortunately there’s a easy work around.
Simply enter this line in Betaflight:
set report_cell_voltage = ON
save
Then you will get the average cell voltage instead of the total battery voltage from RxBt
sensor. For example if you have a 4S battery with voltage of 16V, RxBt on your radio will now read 4.0V instead of 16V.
This is useful if you have multiple quads that uses different cell count batteries, such as 4S and 6S which can be confusing sometimes.
14 comments
I know this is a bit of a long shot, but is there something like this for the DJI Goggles 2’s OSD. Right now I’ve got Betaflight OSD’s average cell element and the G2’s native total pack element. I’d prefer if the native could show average cell to reduce clutter. After a lot of Googling I ended up here, but this command doesn’t seem to affect the voltage reported to the goggles.
No, DJI’s own OSD cannot be customized at the moment.
Hello!!
es posible obtener voltaje de bateria en la radio sin tener FC en el avion?
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Hello,
is it possible to get battery voltage on the radio without having FC on the plane?
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– Some basic sensor availble??
Gracias!
Nota: I have Rx Nano, Taranis X9D and Horus X10. Modulo Tx Micro V2.
Nice one. You can also use lua script:
https://github.com/k4cus/Lua-scripts/blob/main/Vcell.lua
thanks! it works fine, but now i get “low voltage”error . this happens only one time, just in the moment i connect the battery.
is it possible to set an delay in crossfire ?
I don’t think so off the top of my head.
When I do this my radio only displays to 2 digits. So it’ll say 3.80 or 3.70 and it rounds to either or based on whats between. Is there a fix for this? I’d prefer all 3 places.
Thanks! “Set” was what I was missing!
The ‘set’ is missed.
set report_cell_voltage = ON
Which firmware version?
Eric, try
set report_cell_voltage = ON
save
Hi.
Thank you, a very helpful option
I can’t seem to get this to work. Keep getting an error whenever I enter that command in the cli. Any thoughts on what I may be doing wrong? Matek f7 on 4s.
sorry it should be “set report_cell_voltage = on”