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Mistake busbars ?
#7
A little test, with 2 V-meters, one in the front of the pack and one in the back, both on the same bus-bar in the middle, this is te one with 2 rows of cells.



In the cupboard,left top corner, without load:
 

With a 10min load of 130A, still the same voltage :
 

And after 45min "medium" load of +/- 60A, no difference between the voltages.


I also measured the voltage between the common-pack negative and the positive on a random cell in the pack (as Daromer suggested ) with a handheld V meter, and there is no difference between the cells ( only a 0,01V precision meter )
So, maybe some unbalance in the 0,001V range on a heavy load, but i think we can put this to rest and carry on happy Smile

I will leave the Volt meters in there for a while...

suggestions are still welcome.

My build: http://secondlifestorage.com/t-Instant-powerwall
100kwh-hunter likes this post
___________________________________
18x 300Wp solar off grid and 10x 180Wp solar tracker grid-tie
10KW 3phase hybrid inverter. 40Kwh 18650 storage (for now)
My setup: https://secondlifestorage.com/t-Instant-powerwall
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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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