Just found these this morning, and wasn’t able to find them mentioned anywhere on this forum or the old one (Just saw the regular fuse wire cell level fusing). I feel like to could help a lot of new builders make safer batteries. Thoughts? Think I’m going to use them for a ebike battery build.
“The fuse will blow fast at 8 amps. The fuse can carry 3 amps continuous while staying cool and without voltage drop”
No Bueno 
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@mutantbass Any reason you couldn’t stack 2-4? People already spot weld multiple thin layers on some builds if their spot welder can’t handle thick nickel. (Also says at the bottom of the listing you can stack for more amperage)
Or if they already have the molds produced, I wonder if it would be worth asking about producing a thicker/higher amp model for e-vehicle use
something about putting things that are designed to get red hot and pop inside the battery just makes me cringe.
so you’re cruising along at 7.5 amps per cell… you basically have a space heater in your board. No thank you.
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@longhairedboy they say no heat generated at 3 amps, but blows at 8. Wonder if they could make it 4x thicker so it would blow at 32 instantly, but take 12amps consistent without generating any heat. (Or twice as thick and you just double it up when spot welding)
Is this any different then using the copper bus wire? Those heat up when they blow too. Do you not use any cell level fusing longhairedboy?
No, i do not use cell level fusing. Not yet. I haven’t yet seen a way of doing it that doesn’t put red hot metal right next to everything that shouldn’t catch fire.
I have an idea for modular p groups, i think the way to do it might be group level fusing amidst the series connections using fuses contained in plastic or metal shells isolated from things you don’t want near hot glowy stuff.
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cell fusing is really for massive packs with huge P groups where individual cell draw is low.
like a tesla pack, which is like a 72p. if one cell in that group goes out, that entire pack will be just fine.
if one cell in a 4p fuses out, that P group will be completely out of balance in one cycle, and likely dead in a few.
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Then there’s that.
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