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Behaviour of cells in parallel.
#21
Looking at the cell discharge covering time period 16th 12:00

Will try to just show charts...

 

 

 



Ideally the cells need the bus splitting so the voltages can deviate... the cross connection is hiding some data due to the common cut-off point as this changes the discharge rate of each cell through the cycle.
If you can't quantify how much they cost, it's a deal, I'll buy 5 of them for 3 lumps of rocking horse ......
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#22
(08-16-2019, 07:01 PM)completelycharged Wrote: Ideally the cells need the bus splitting so the voltages can deviate... the cross connection is hiding some data due to the common cut-off point as this changes the discharge rate of each cell through the cycle.

Well yes bus splitting would give us the cells individual characteristics.
That would require 4 separate discharge modules and at this time the object of the exercise was to see how the cells operate in parallel.
I can of course discharge each cell individually for those results.

Or if someone wants to build a (Phd) Wink board like mine I will gladly share the sketch. Who knows what improvements can be made to it.

I think total cost was around $50 if that much.

PS: Looks like the battery pack that I had it hooked to has been depleted as its no longer injecting data to influx.
Well when I get home in a couple of hrs I will plug it in (got to get me a 12V to 3.3V buck) and recharge the cells that are on it and start a new series of cells.
Wolf
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If 18 X 650 = 2200+mAh then we have power! 
May all your Cells have an IR of 75mΩ or less Smile
Last count as of 8/7/2019
Total Number of Cells Recorded and processed                 6106
Total Cells required for PowIRwall                                   2856
Total Cells ≥2200mAh, ≥80%, ≥35mΩ, ≤75mΩ, ≥4.12V   2694
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