2.0.0-beta.9 — spread, judged correctly
Pre-release
The battery charges and discharges one pack at a time rather than all of them together. During either, the packs sit around ten points of state of charge apart, and their cells therefore sit at different voltages. That is the design working.
Three readings treated it as a fault.
Pack spread
Warned above 5 percentage points and scaled its bar to 10, so normal operation was permanently amber with the bar at its end. A warning now starts at 12 points, critical at 20, and the bar is scaled to 25.
Overview tile
Reported the spread across the whole stack — highest cell anywhere minus lowest cell anywhere — and judged it against 100 mV, which is the limit for cells inside one pack. On a stack whose packs are staggered that is guaranteed to read critical.
It now reports the widest spread within a single pack and names that pack. Packs staggered 160 mV apart but each internally tight read 8 mV and green; one pack drifting 120 mV internally reads red and says which one.
Stack spread in the cells view
Keeps its number, loses its verdict and its bar, and says why a spread is expected. The number that finds a weak cell is the delta within a pack, which the tile beside it and the table below already report.