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Li-ion Battery Discharge
terminal voltage vs state of charge
A lithium cell holds a nearly flat voltage plateau through most of its charge, then drops off a cliff near empty — the curve every phone, laptop and UPS gauges its battery from.
Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library — animation baked to GIF with the library's own
Gif encoder (no GPU, no ffmpeg, no external packages).