I have had my Mini 4 Pro for one week now and I must admit I am quite disappointed by the battery life. I am getting at most 20 minutes flight time. Having a look back through my previous flights they mostly range from 17-20 minutes. Based in the UK so I am using the normal battery. Also using the FCC hack but I can't imagine that uses much if any additional power? Has anyone else experienced this? I'd like to know if there is anywhere I can order and have delivered to the UK the Plus battery?