OK. So, I'm a little confused. I understand the part about registration with >250g part as well as the RID for the plus battery. Does the unit still need an add on RID module if using the standard batteries? And also, since adding the RID module...
I am looking to upgrade from Mini 2 to 4 Pro. I read details from Amazon that the plus battery is needed to enable RID. Is this true or is RID enable through firmware updates?