I recently purchased a P3 Advanced copter and currently use it with a LG Phoenix Optimus F3 (LG-P659) cell phone. I notice that the remote controller charges the phone (which is great), but there is apparently a problem with the charging rate or something related to the charging process. The phone battery now discharges prematurely and takes longer to charge when using the normal phone charging adapter. I am posting this with hopes that DJI might comment on this matter and also to find out if anyone else is experiencing this issue.