[Analog]

Originally Posted by Ether

Yes, the larger the current, the lower the output voltage at that current over time.

But I think you missed the point I was making: For equivalent drained Ah, the higher current drain rate should have a lower voltage.

200A*30s = 6000As = 1.66Ah
400A*15s = 6000As = 1.66Ah

So the voltage at 400A at 15s at should be lower than the voltage at 200A at 30s. But it's the other way around in the figure.


This is just a minor observation and in no way detracts from the impressive accomplishment of the work and the report.

I see what you mean. These family of curves were referenced from the SAE standard, and our interpretation was strictly that the discharge was non-linear when comparing different load values. Your keen observation certainly goes beyond what we intended from that graph, but I appreciate your feedback. Thanks.