# Battery cell level nickel fuse
**URL:** https://foil.zone/t/battery-cell-level-nickel-fuse/14582
**Category:** Electronics (ESC, remote, batteries)
**Created:** [November 25, 2021, 12:59am UTC](https://foil.zone/t/battery-cell-level-nickel-fuse/14582 "2021-11-25T00:59:53Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@FacuO](https://foil.zone/u/FacuO)
#### Post date: [November 25, 2021, 12:59am UTC](https://foil.zone/t/battery-cell-level-nickel-fuse/14582/1 "2021-11-25T00:59:53Z")
Hi, has anyone built a battery pack with this? Are cell level fuses worth it?
I’m going to build a 12s12p pack with samsung 30q, does it look promising for my project?
> **[NICKEL FUSE 2P-6P WIDE CONTINUOUS ROLL BY THE FOOT! 18650 CELL LEVEL FUSING](https://batteryhookup.com/products/nickel-fuse-2p-wide-continuous-roll-by-the-foot-18650-cell-level-fusing?variant=34549080326306)**
>
> Each foot equals 15 cell connections long by 2, 3, 4, 5, or 6 wide. For example 2p wide would be 30 cell connections per foot (2 wide x 15 long) and 6p would be 90 cell connections per foot (6 wide x 15 long) Introducing custom cell level fused...
" this fuse design is meant to protect against that catastrophic event without interfering with everyday use. The fuse will blow fast at 8 amps. The fuse can carry 3 amps continuous while staying cool and without voltage drop. The connecting strips between the cells will handle 10 amps."
Would the amps be okay? could i stack 2 of these if not?
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### Author:  [@tosh.jah](https://foil.zone/u/tosh.jah)
#### Post date: [November 25, 2021, 1:45am UTC](https://foil.zone/t/battery-cell-level-nickel-fuse/14582/2 "2021-11-25T01:45:09Z")
I can totally recommend them, my pack has worked fine during this season.
It’s a bit more work, but i would recommend using two strips to be able to draw more amps!
Here’s the build:
> [@Building an 18650 battery with individual cell fuse wires](https://foil.zone/t/building-an-18650-battery-with-individual-cell-fuse-wires/5611/177):
>
> I’ve just finished building an 18650 Samsung 30Q pack with these nickel strips. I had to spot weld two layers of nickel strips, since one layer will only do 3A continuous without getting warm and will blow fast at 8A per cell. Now with two layers I have 6A continuous and 16A fusing. Times 14 cells this is 84A and 224A max. I’m running the pack with a 200A Smart BMS… Here are the pics:
> [@Tobi's build from Berlin](https://foil.zone/t/tobis-build-from-berlin/12585/26):
>
> Hey guys, I have been posting some of my learnings and advances in in other topics so I want to keep my build up to date as well! The summer has been amazing and I have spend more time on the water than any other year. I was happy to be able to finish my second board in time and going out for runs with family and friends was well worth the effort. This is a video of a roadtrip to Croatia: [[Beautiful Croatia - Efoil Heaven] ](https://www.youtube.com/watch?v=9H5yKYl-XiE) On my V1 I’ve remade the s…
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### Author:  [@FacuO](https://foil.zone/u/FacuO)
#### Post date: [November 25, 2021, 2:16am UTC](https://foil.zone/t/battery-cell-level-nickel-fuse/14582/3 "2021-11-25T02:16:25Z")
Great build! Do you remember which width you got (2\*2p / 3p / 4p)? In the pics it seams its the 3p folded in half, if that’s the case, wouldn’t only 1 of the 2 rows of cells have 2 fuses?
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### Author:  [@tosh.jah](https://foil.zone/u/tosh.jah)
#### Post date: [November 25, 2021, 2:37am UTC](https://foil.zone/t/battery-cell-level-nickel-fuse/14582/4 "2021-11-25T02:37:29Z")
It’s 2\*2p so just two on top of each other. Fusing the battery minus wouldn’t be necessary but also doesn’t hurt. So I’ve fused the cells on both ends with this setup.