The Seidio DILEX Extended Case with Metal Kickstand for Samsung Galaxy Note 3 is made for the Seidio Innocell 4800mAh extended battery. But pictures showed that the battery was as big as other, larger capacity batteries. And Seido apparently use the same type of back cover as others. From pictures, it looked just like my Anker 6400mAh extended battery. So I decided to try it out, and it fitted perfectly.
For the NFC and wireless functionality to work, I used the original Samsung Galaxy Note 3 wireless charging battery cover. I removed the charging pad from the cover, cut a small part from it who interfered with the extended battery and fastened the contact points with duct tape.
As you can see in this youTube video, everything works with my original Samsung wireless charger.
Possible problems. The Seidio DILEX extended battery case is a little slippery, and may not offer as good grip and corner protection as the Balistic case I used before. The wireless charging did not work with a cheap Fasttech charger I had. I believe the kickstand may cause problems. It's metal, and it cause the cover to bulge out more.
All in all I'm satisfied with the cover. I think it looks good, it feels solid and the buttons work fine. It does add extra protection. The kickstand is a nice bonus.