The battery builders club


Ok I’m confident that I’ve got this setup right. Got my pins all good at the balance pins, and now all I got to do is plug it in.

Negative terminal first, then balance pins, and then apply power. :+1:

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There’s supposed to be a silent prayer to Skatan somewhere in that order

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!HAIL SKATAN¡
!HAIL SKATAN¡
!HAIL SKATAN¡

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more like:
“Dear Skatan,
I gave you all my lunch money already and I’m all banged up from tryna go too fast, so please, don’t kill me in a battery fire before I get to go skate again.
Amen.”

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Interesting, I always do my prayers and spells without components

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you do gUUd macrame… would you make me an es8 Murse?

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nice job

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Now I’m havin issues with the app.
Keeps knocking into overvoltage when in reality, the cells are way under the value.
I’m thinking I need to calibrate the bms, but it says ya need to know what ya doin. And I don’t, atleast I’m nervous to try it😆

It actually seems that cell 3 is giving issues. I would like to turn off charging to that cell group, but I don’t know how to.
Anyone have some tried and true settings/rules they go by while setting up their config? Thx!

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Not quite sure that is a possibility. They’re all being charged together by 2 wires connected at both ends of the entire pack.
Conversation heard inside the pack:
“Sarge, owner wants to skip #3
“Boys get ready, we got some arcing to do today. You, you’ll be jumping from 2 to 4. You, you’ll be doing the opposite. Now move it, move it”

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Literally my life

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that’s literally what a BMS does

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Joining the club (soon). Waiting for my nickel from AliExpress…

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Whatcha writing on the cells?

The holders are supposed to protect the cells, no fishpaper needed, this is why the nickel is dented down into each cell, but looks good just wanted to public service that aspect

No. A bms balances them by bleeding. How could it physically stop the current coming in from going to a specific group?
A (completely impractical) way to do it would be:
Every p group has its own circuit with a connection to the group and a passthrough for adjoining groups…like a cell level fuse system but that can reopen the connection at will.

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voltages

take power from one (bleed) it to another

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That would take weeks with balance current xiaoxiang bms has.
And his question wasn’t about balancing but about completely stopping one pgroup from getting current
Which the bms does not do

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