What about printing it in two halves the each have a flat bottom? Since the optical quality doesn’t matter, the line down the middle of the lens won’t matter.

https://m.youtube.com/watch?v=5YGc4zOqozo

Fortunately it looks like the federal courts don’t allow this any more: https://www.ussc.gov/about/news/press-releases/april-17-2024

But of course the state courts have their own separate rules.

LFP cells have excellent cycle life anyway (2000+ cycles); is it worth worrying about staying at 95%?