Thought I would give an update as to how it played out for me...
I returned the V8s that would not charge past 89% (on the app). Bought a different one, also from Amazon. This second one shows that it will not charge past 94%. So that's an improvement.... BUT it would be nice if a brand new unit would charge to 100%.
I kind of gave up after the second try. I'm having fun on my V8S and it has plenty of range (I tend to ride about 5-10 miles each ride).
@Skeptikos Please post an update here after you receive and replace your control board.
Also, how did you communicate with Inmotion for the support that you got? Thanks.