(31-Dec-2023, 06:08 AM)segler999 Wrote: Only mstc mentioned about proper settings for Warning Voltage and Minimum Voltage in the Power and Battery tab of Betaflight.  If those numbers are too high, you will get flashing on the screen earlier than needed.  It will drive you crazy.  Yes, batteries sag when loaded.

For 1S I set those numbers to 3.2 (Low Voltage) and 3.1 (Land Now) volts.  For 2S and up I set them at 3.5 and 3.3 volts.  Since the voltages go quickly back up to 3.5 to 3.7 volts per cell after disarming, I know I am not damaging the batteries.

You can tweak these two numbers to get the best flight times with safe landings and no battery damage.

None of my batteries ever got damaged, and I land every single time around 3.7 per cell (I run only 6s configurations). The thing is, if you took the time to read the whole thread, my FC was reporting wrong values from the get-go. Even then I never landed below the values I usually do. I've posted numerous videos showing what was my OSD reporting, and immediately after landing, what were three of my battery voltage meters reporting. They were all consistent, brand new batteries with perfect readings. Problem solved when switched to ESC voltage reading, everything works perfectly fine. Again, I take great care of my batteries (all of them), and I almost always land near storage values. After I get home, I always put them on storage mode, just to play safe as much as I can.

EDIT: And I even mentioned Power & Battery tab and those settings in my initial, very first post here:
https://intofpv.com/t-pre-mature-low-bat...#pid208455
 

Quote:...Inside the Betaflight, under the "Power & Battery", Amperage Meter Scale is set to 200, as per T-Motor's recommendation for this ESC (Velox V50A), and Voltage Meter Scale is set to 113 after I did calibration with full battery. BF was showing me accurate Voltage at the time...