Had a max rated range of 146 miles when I received it in 2013.
Dropped to 140 miles in 2014 after a software update.
Dropped to 133 miles in 2015 after a software update.
Dropped to 130 miles last week for an unknown reason.
That's not very encouraging. I do everything I can to keep the battery as good as possible, but it keeps dropping. I do not feel like it's battery degradation, but some software updates that create artificial degradation. I'm very disappointed ...