[DrKnow65]

How about a graph where the cell is loaded to what ever amps it takes to drop it's voltage to 3.2v. Then as the test progresses the amps will fall off to keep the cell at 3.2v untill the amps hit 0. Note the temp rise from an established 80*f. Cutoff voltage may need to be higher or lower for the cell to never pass the "maximum safe" temp ~140*f?


It would of course take multiple tests to place the proper cutoff voltage with each cell. Example cell#X test 1, LVC=3.8v (test begins) tester loads the cell to what ever is necessary to drop the voltage to 3.8v (say 60amps then decreasing, dictated by LVC) cell temp only rises to 115*f during the test. Recharge cell to 4.20v cool it to 80*f. Cell#x test #2, LVC=3.6v (test begins) tester loads cell (say 85amps then decreasing dictated by LVC) cell temp rises to 135*f during the test. Again at 3.55, 3.50, 3.45---

So on and so forth untill either the max safe temp is hit or the LVC drops below 3.0v. At that point a graph is made, showing the cells maximum constant performance.

The variables for air flow would need to be set, and a tester would have to be fabricated. We could use a data logger to show the volts, amps, time, and temp in a graph.

Wouldn't an ESC with a soft cutoff (proportional to lvc) be able to do this for us? We would just need a load that will be able to stay constantly above the required amp draw.