Fishpaper and cell level fusing, USE IT!

If you guys are interested I can post a little “how to” on cell fusing. I have a few methods that might work well for the home builder. You do need a spot welder to do it.


Yes, definitely interested!

+1 please.

I disagree. Lifepo4 is the safest chemistry available. I have never seen a lifepo4 fire. If you have a video at hand prove me wrong.


You guys need to check out for fusing techniques, material tests etc. We have some really indepth discussions about different options over there.


Yes. Lifepo4 is the safest chemistry. It requires a extremely negligent care to cause a fire. The very few cases reported were because of a faulty bms or charger, not by the cells. I never Heard of a fire caused by the cells.

Yes! I was going to ask you to do this yesterday. Would be much appreciated

This should be good…Keep this thread bumped up to the top of the list. Here’s a thread that was pretty helpful. It’s got some good info throughout.

I will be adding some photos and tips on battery construction with cell level fusing. It wont be all at once, I will edit the original post periodically over the next few days/weeks!


Any more updates? Pretty please :grin:

I second that! really want to understand the cell level fusing better. I don’t quite see how it works.

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I have a 10s4p cell fused pack if you’re interested :stuck_out_tongue:

Wana show me the way? :stuck_out_tongue: I want to learn how to do it, and do it right.

I can show you if @Jinra or @chaka dont

I’m interested as well

Also, you can spot weld fuse wire

I do it differently than chaka since I soldered straight to cell, but basically you have a buss bar (brass for me) that lays on the side of the cells. The fuse gets soldered onto the buss bar connecting to the cell creating a parallel connection. If a cell outputs too much current, it’ll blow the fuse disconnecting it from the rest of the parallel group.

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This is how I did mine HOWEVER they seem to break from vibrations.

22 awg solid wire and chaka cell holders.

Seems like you need more slack

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I thought mine was breaking due to vibrations as well, but it was in fact high current.

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