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Mistake busbars ?
#4
The Variance would only be evident is Really high Amp draw conditions. We are talking about max discharge so around 1A per cell and in an 80p packs that's 80 Amps. Not sure what your max load is going to be but even with 80Amp draw the difference we are talking about is .01V from end to end. and if you are leaving .1v wiggle room at the top and bottom you still have a lot of wiggle room. For example i run my Wall from 4.1 to 3.6V.

I did do a test when i was first looking at pack design (and I'm still making changes as I go lol) and took 8 cells hooked them together in parallel with the power leads off cell 1 only. Cycled the pack a few times then pulled a high drain (8Amps ) from the pack and then removed the batteries from the holder right after it was done and I only saw 2 batteries that were different and they were in the middle so I think that was just a happenstance of the cell being not exactly the same as the others in capacity or max draw

So personally I would not sweat it at all.
Korishan likes this post
******Hi My name is Jason and I have SOCD (Solar Obsessive Compulsive Disorder)*******
Current Powerwall - 1400 Cells 7s200p (modular 40p packs) ~ 12kWh of storage     4x 315W Canadian Solar Panels

Working on the next 7s40p packs     ~2.5kWh

Waiting on 2000 Cells of unused Sony vt4 (2000mah 30A) ~ 15kWh      hehehehehe  More Power
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Messages In This Thread
Mistake busbars ? - by wim - 09-19-2017, 06:06 PM
RE: Mistake busbars ? - by Korishan - 09-19-2017, 07:37 PM
RE: Mistake busbars ? - by dougal - 09-19-2017, 09:09 PM
RE: Mistake busbars ? - by jdeadman - 09-20-2017, 12:29 AM
RE: Mistake busbars ? - by Hanssing - 09-20-2017, 04:15 AM
RE: Mistake busbars ? - by daromer - 09-20-2017, 05:51 AM
RE: Mistake busbars ? - by wim - 09-20-2017, 03:21 PM
RE: Mistake busbars ? - by dougal - 09-20-2017, 04:14 PM
RE: Mistake busbars ? - by Korishan - 09-20-2017, 04:13 PM
RE: Mistake busbars ? - by wim - 09-20-2017, 05:58 PM
RE: Mistake busbars ? - by Korishan - 09-20-2017, 07:29 PM
RE: Mistake busbars ? - by wim - 09-20-2017, 08:29 PM
RE: Mistake busbars ? - by Korishan - 09-20-2017, 08:43 PM
RE: Mistake busbars ? - by wim - 09-21-2017, 05:08 AM
RE: Mistake busbars ? - by Korishan - 09-21-2017, 01:30 PM
RE: Mistake busbars ? - by SimonW - 09-21-2017, 02:11 PM
RE: Mistake busbars ? - by Korishan - 09-21-2017, 02:34 PM
RE: Mistake busbars ? - by wim - 09-21-2017, 03:21 PM
RE: Mistake busbars ? - by Korishan - 09-21-2017, 03:34 PM
RE: Mistake busbars ? - by SimonW - 09-21-2017, 03:36 PM
RE: Mistake busbars ? - by Ronny - 12-01-2019, 11:15 PM

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