The running lights on our Tour Easy fairing sit just about perfectly level, despite how they appear in relation to the fairing edge:

And, because they’re firmly attached to the fairing mount, there’s no way to tilt them to extract the 18650 cell.
This took entirely too long to figure out:

The LC40 end caps have a recess exactly where it’ll do the most good: capturing the tab inside the cap means it can’t interfere with the rear contact spring:

Swapping cells no longer requires muttering!