I just want some extra batteries en the charging-hub for my new DJI FPV drone. (Fly more kit)Why are they so hard to get? And why are they so expensive? Most shops including DJI's webshop are out of stock.
Is this temporarily or longer existing?

Hello there dr. D. Thank you for reaching out and for giving out these information. You may try check our DJI Where To Buy platform on this link ( https://www.dji.com/where-to-buy ) to see if the DJI Intelligent Flight Batteries and the charging-hub for your DJI FPV that you need is available. In addition I hope that you can get some recommendations from our DJI Co pilots with regards to this inquiry. Thank you.

DJI has been sending out defective fly more kits. Many people have experienced this. There is a whole thread dedicated to defective fly more kits.