No, I'm talking about concerns with the X-T20 camera and battery.
I'm hoping its a perceived problem versus an actual problem. Specifically, it looks like they changed their battery icon to be more precise. It has more bar indicators. I think the X-T10 battery icon had 3 bars and I think this has 5 bars so it looks emptier faster.
I did get a decent day of casual weekend shooting yesterday and it seemed to do ok. However, my wife who inherited my X-T10, and shot along side me had full battery bars when we returned home while my battery icons looked mostly empty although I was able to keep shooting at night. (Yes, I shot more pictures than my wife, and this is a real world and totally unscientific report).
In terms of using the old battery with the new camera, I tried it once, and won't be doing it again. My camera got very hot (i was just shooting JPEG) and at one point it flashed some error message.
I don't mean to bash this camera. In fact, I love it. After 4 days of use, I picked up my old X-T10 which got me to really notice the upgrade.