Nope. I'm using V1 of the flight controller which had some really conflicting information about the VREG. At first when it came out it was rated for 4s... then they revised that to say that only 2-3s worked with the BEC and 4s required a separate one. They then FURTHER revised that to say that the BEC was only good for 2s .... which is frustrating. But I'm only running this on 2s anyways, so it wasn't really an issue for me. Finally, the newer version of the FC (linked above) is once again supposed to support 4s out of the box. Time will tell I suppose....
Do you need BEC to power the FC?
Nope. I'm using V1 of the flight controller which had some really conflicting information about the VREG. At first when it came out it was rated for 4s... then they revised that to say that only 2-3s worked with the BEC and 4s required a separate one. They then FURTHER revised that to say that the BEC was only good for 2s .... which is frustrating. But I'm only running this on 2s anyways, so it wasn't really an issue for me. Finally, the newer version of the FC (linked above) is once again supposed to support 4s out of the box. Time will tell I suppose....