Battery Appears as "-1%" in APM Planner 2.0

Hello all!

We have set up the navio2 using ardupilot and we are currently trying to set up waypoints through APM Planner 2.0.

Both the batteries we have (Venom 3 cell 12.6V) show up in the APM Planner software as having a “charge” of -1%.

If we are unable to see how much battery life is left this is obviously going to cause problem.

Does anyone have any thoughts on this? HAs anyone had similar problems?

Thanks in advance for any help you can offer!

Hi! Could you please do the following:

  1. Set APM to logging when disarmed and publish a log
  2. Make a photo of how everything is connected

Thank you very much for your response! It looks like we might* have figured this out. We found instructions in the docs to connect the power adapter with 3 extra wires to another one of the ports on the navio and now we are getting voltage readings, so we’re hoping that should work.