I have a Mini 3 and have recently purchased the Mini 4 Pro. I got a good deal on the Mini 4 Pro plus I already had my Mini 3 batteries which were compatible with the new mini 4 Pro. So I only had to buy the 4 Pro with one battery which was a good saving. However today I decided to fly the Mini 3 with the Mini 4 Pro battery and got the following message on the tablet screen “Incompatible battery version. Change battery”. The Mini 3 batteries do work with the Mini 4 Pro but the 4 battery does not work with the Mini 3. Has Anyone else had this experience?