I'm getting about 12 min. of video flight time before a Battery warning goes off @ 22% , is this normal .
Not so, they have a minimal impact on fight time. Even on a windy day, maybe a minute or two at most. Most folks that post negative things about prop guards have either never used them, or blame them for causing a mishap that was really pilot error. I've used them and have not used them on the same bird and there's minimal impact on either flight characteristics or flight time, at least with the Phantom 3.Yes the guards will create drag, and depending on the type of flying you do, it may have a noticeable impact on flight time.
Not sure what you're trying to say with "video flight time", but you should be getting about ten more minutes than that total flight time.I'm getting about 12 min. of video flight time before a Battery warning goes off @ 22% , is this normal .
Don't think whether you're recording or not has any impact on flight time.I start the Video recording as soon as I'm air born & am using video recording time as a timer . Reason I used it in the description is , I wasn't sure if it made a difference in flight time or as a time calculation . I would think it would , but not sure .
I will do another flight today, if not too windy , with the other Battery .