What problems could arise from a dead CMOS battery?

PX4 Autopilot
1

I’ve been having issues with getting my to stabilize enough to get off the ground, and since I have quintuple checked the motor assignment, rotation, and orientation, I have turned my attention to other possible causes. I have checked the software and everything seems stock, so I have been looking into possible hardware issues with my gps and 3dr px4. I discovered that my ublox m8 CMOS battery was dead, so I replaced with a m10.

I just now had the idea to check the CMOS on the px4 itself, and found that it is essentially dead. I’m not sure exactly what it needs the CMOS for as I thought all the parameters were saved on the microSD card.

I was thinking of getting a newer version because the coin cell is spot welded to the board.

Thoughts?

2

I think it’s probably a good idea to move on from the 3DR Pixhawk to something more current based on STM32H7, for example you can just use a Pixhawk 6C.

In terms of software, are you flying ArduCopter or PX4?

3

I’m using Arducopter V4.5.7

4

In that case you’re better off asking in discuss.ardupilot.org.