My Mavic2 Pro currently has 3 batteries. It about 1 month since I got it. Everything is in a GO-PROFESSIONAL hard case with foam cutouts. It was sitting in my office today and I opened the case and as I removed the 3 batteries, I noticed 2 seemed warm. 2 batteries are 8-9 deg warmer than the case and 1 battery is about 4 degrees warmer. They were all charged about a week ago. The 2 that are warmer are showing 3 green while the coolest one is showing 4 green. What's going on????