Nice, I think adding holes at this point would be a little risky, but the two layers will work fine
Thanks
There old batterys $10 each. I have a charger on them constantly while using and a digital voltage metre that way I can keep an eye on it as I go and keep it consistent
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A lot of you guys are going to cringe hard…
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finally a small 12s BMS… this is the offering from @dickyho, which is a rebranded Daly 15amp BMS … 16 days from order to having it in hand!
length is ~60mm, width ~50mm, height ~11mm, weight 60 grams
I’m going to run this by-passed obviously…
hold my beer, I’m going in…
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yes sadly he hasn’t learned about fish paper rings and cutting nickel corners. Really cool to see DIY tech like that from them, I watch a lot of their content.
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does this have balance function?
how thick?
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I enjoy some of their videos and when I saw the thumbnail I was really interested ! But while I am no expert in battery building, a lot of this video screams danger.
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The fish paper bridges worked really well, thanks again guys, just insulate the top and bottom and it’s done
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I’ve got a 13s version coming as well 
ordered off ebay for $15 looks to be the same one
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As long as you get a low discharge current BMS it should be almost as small…
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Is your 13s limited to 8a discharge? That could be the reason it’s smaller
I think that 8A is charge rating. Which would make sense. I always order 15A discharge with the intention of bypassing and never gotten anything but the 15A/15A 12S ones. So I was kinda surprised when it was so small.
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what’s the dimensions? Looks pretty small… Maybe 13s isn’t such a bad deal…
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so if you bypass discharge you don’t rlly need separate port? because you have 2 types of those bmses
speak english son… hahaha
It still has a charge port, a balance plug, a power connector… the only difference is how one wires it all up…
above i put a bypassed diagram, here is a discharge diagram:
