My 26 lb NMC-LMO pack on my bike is 1800wH nominal. New cells. 0 cycles. 205wH/kG cell (92wH/Lb). Circa 2019 cell.
Chalo said:
Okay then, disagree if you want. But here's an example I have a few of:
https://batteryhookup.com/products/samsung-12s-43-2v-8-5ah-367-2wh-lithium-ion
They have other virtues including power density, longevity, build quality, uniformity, and low cost that offset their relatively low energy density.
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You base your experiences.... on buying a used.... no known history... and secondhand... pack from a used battery seller? Whom is known for some times selling .... low capacity, degraaded, or poor performance cells?
I was basing my experiences on new, top of the line, full capacity, 0 cycle, modern hybrid EV cells, purchased from the manufacturer.
Yes uniformity, power, and cost, matter. Build quality. longevity especially. I expect 40,000 cycles to 50% DOD in the span of my packs life.
From one battery hobbyist to another: Congruence in statement, based on a known standard... You have to start with new cells if you want to make an accurate ( good) statement of the baseline capacity vs volumes. Densities. When it comes, to the performances, of a certain cells, architecture, to the intended application.
Sure BHU is great... 80% of the time. The other 20% of the time is return for replacement. Well known in the hobby community, for Tom will stand by his sales... but.... You cannot base an assertion of the densities of a cell on the fact that you bought used cells, and of that which I am making, I bought new.
Once I complained online about the condition of some cell that Tom sold... and to get me to stop talking shit on his wares he sent me a 300$ box (bribe of batteries to shut up.. er to.... Try out for my own purpose and give a positive buyer review... Lol.. ) .
Lol. I'll leave it at that. By the way.. you r links are broken. 404 NOT FOUND.
I was basing my experiences on new, top of the line, full capacity, 0 cycle, modern hybrid EV cells, purchased from the manufacturer.
I probally have 10+ (brand new, various capacity cells), for testing, from SK and LG and A123, in the shop, lab, garage... Julian dated 2022... sent to me by other hobbyist, from all over the world, for dataloggin. Portrayed this quality. 2:1 or even 3:1 ration, in size ( volume, as in liters) from LiFePo4,... to a NMC power dense cell.
NOT a 1:1 ration (in volume).
Yes. I want to disagree. I do. Want to.