I bought a Phantom Vision a couple of months ago during a free battery promotion by DJI, however the dealer that I bought mine from did not honor the free battery offer. When I contacted DJI about this, I was advised that not all dealers have to participate in the program. I was hoping that DJI would make things right and send me a second battery once I proved that I purchased the Vision during the promotional period. No such luck. In fact they kind of gaffed me off which surprised me as I had just bought there product at the tune of 1200 bucks. I guess I could have sent it back to the dealer I bought it from, but I was so happy to finally have it, I wasn't going to let a 160 dollar battery break the deal. I only wish that DJI would have been a bit more supportive about it. It was their promotion, they should have made it right.