The battery builders club

I use it to secure the edges of fish paper and to hold things in place until the heat shrink is on knowing it’s not going at add any issues by conducting or burning. Use materials to there strengths it’s a reliable cheep option to use with a abrasive resistance material in battery building.

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Or a Pappedeckel :joy: ( cardboard)

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Well yes, but why not use a tape that also stands up to abuse since you’re already taping anyway.

Tesa51036c

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It’s thicker and builky if your referring to automotive loom tape good for thin edges tho

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I use kapton around the cell where pos/neg meet, in my batteries and ones I’ve made for others, and even just p groups I send out. It’s there for “in case of stupid”, like a soldering iron falling, balance lead shorting, random stuff like that, that’ll go through the cell wrapping. Once you’re passed that, it has minimal use till you’re taking the battery apart for some reason.

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I use it in conjunction with fish paper and electrical tape where it makes sense. it’s not super flexible, so it’s nice to hold packs together sturdy. I like using it between P groups especially for packs in a U shape along with fish paper, as a sort of double whammy for both electrical protection, if a weld comes loose and gets hot, and fish paper (and thin cutting board) for abrasion.

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Ehh yeah alright. I guess it’s like really strong scotch tape or something. I prefer automotive harness tape together with fish paper just because it’s almost like having 2 layers of fish paper. Tension strength strong as hell too so kind of structurally helps keeps a pack together too imo

I’ve found a transparent one that I will use in my new pack, just to reinforce the silicone holding each P group to each other

Well they got here quickly. Ordered over the weekend. Just spot checked a few and they are reading 3.45 volts.

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I use it under, over, or around any area that will be soldered on or near, as a high temperature idiot-barrier. For 99% of my insulation though, I use fishpaper or other more application-specific materials.

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E-bike battery for a friend almost finished.
13s8p 30Q with smart BMS.
Needs an enclosure and connectors which I wait until his motor arrives to see what type is required.

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Anyone know anything about these? Could be a good price if they are any good.

they’re likely off of hoverboard batteries or something similar, ok for charge only

has anyone ever accidentally made a 13S battery?

I just did lmao

following the wiring diagram and adding cells until I used the last balance wire…

I have a 13 cell stack now


help

there are more pins on my BMS than in the wiring diagram I followed is how it happened

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hahahaha
just keep going 20S is standard now

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Lol, you didn’t follow it that closely, you have no balance wire on the negative

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I may have used the wrong diagram… no last negative balance wire
oh I see the first pin is not connected. That isn’t easy to spot.
so the unconnected pin is supposed to go to that last ground

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Omg! I just realized I can probably turn my 12s bms into a 20s bms!!! This bestech, I can can just solder on an additional connector am I right about this?

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Depends if all the other components on the pcb as well populated for 20s

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It says 20S on the PCB so it might be, but there are some mosfets missing .

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