Victron Connect chooses its own Y (and X) axis and labels.
And quite often, it does so in a very non-intuitive way.
Quite often the Y values simply do not show, because they are above or below the visible vertical range. (especially after zoom in/out of the timescale). Sometimes also all values are bunched up in only a small vertical range of the screen (see below)
And on top of that, the chosen labels seem very mathematically chosen, yielding labels like (see example) -1.48V to 16.36V, showing several others in-between, but no round numbers. (at least 0.00 is always shown)
In example below. I can imagine 0 to 15 could be argued (zero based). Or 12 to 15 (value based). But -1.48 to +16.36? Really?
At least the manual cursor is a good idea, I do like that option.
For the situation where the values fall out of range, it would be nice if the Y axis could be rescaled by double tapping the relevant axis. Or if I could drag up/down the vertical position, like I do the horizontal position.
And it would be nice if the auto-scale rounds to “human” number. In above example, -12V to +15V with a gray line every 0.5V. Or maybe indeed 0V to 15V with a gray line every 2V.
The bees knees would of course be if I could optionally set a scale myself. But maybe that is a bit over the top.
