I'm installing Remzibi OSD in a skywalker with APM. The OSD has it's own GPS so hopefully it's not a problem having them both but my question is about battery voltage.   In the manual it's not very clear about a single battery setup and doesn't mention anything other than using a 2S or 3S. I prefer a single battery setup to run everything and am using 2 separate 2S 6000 batteries wired in series.…