Just thought I'd share this graphic.
It's a composite with no real attempt at accuracy of scales, which is why I have removed any numerical references. It is just to illustrate the battery level indicator issue. The axes are essentially Voltage over Time, but don't try comparing one curve with another - other than the amount of time spent in each of the battery indicator levels.
I have arbitrarily assigned 5 levels. 3 green from high to medium, 1 yellow 'warning' level and a red 'critical' level.
The blue line is, obviously, a typical battery discharge curve.
The black line is an 'ideal' converter - with good regulation. I included this because this is the sort of expectation that existed in the absence of any data from Batteroo. There was a long time where this was the only game in town - so it is relevant for understanding discussion during that time.
The red line is an actual Batteroo sleeve result I pinched from one of the charts posted here.
Image is Superceded Thought it might be a useful illustration.....