A few days ago I got an 'RTC battery low' error on my Horus X10 during startup. Opened it up and can find only the main 2S battery, no coin battery/RTC battery at all. I looked all over the web, contacted the GetFPV support (where I purchased it), but never received any feedback or found an answer.
Does anyone knows what is triggering the RTC battery message, if there is no battery present?
Could it be that a single cell of the 2S lipo acts as the RTC battery?
Would appreciate any help on the subject. Thanks in advance!