I just took delivery of an M2 and noticed the RC battery discharged very rapidly in use, more than twice the rate of my previous MP. It appears from the charge icon on the phone that the RC is charging my phone, hence the extreme drain on the RC battery. I've looked everywhere for an option in the app to turn off this charging feature through USB but can't find one. Has anyone got a solution? I searched this forum and couldn't find any articles on it, so I'm wondering if this is something new. Maybe if I use the lower USB port instead of the left side port, that might stop the RC from charging the phone.