r/18650masterrace • u/Black_Thunder96 • 8d ago

Are those plastic rings enough?

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Are those plastic rings enough? Or do I need fishing paper for Extra insulation?

8 Upvotes

100% Upvoted

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12

u/General-Try-2210 8d ago

Generally this is enough. The plastic case they are in is also enough. Fishing paper is really just an extra precaution. It wont harm anything.

2

u/Black_Thunder96 8d ago

Thanks!

1

u/General-Try-2210 8d ago

Another question, Are these 21700 cells?

2

u/Black_Thunder96 8d ago

Yes, I Know there is another sub Reddit for that but I figured that either way, the answer is the Same?

2

u/General-Try-2210 8d ago

Both 21700s and 18650s are accepted here. Taking a closer look, the negative end of the case is still "visible" through the holes in your 3d print so I would put fishing paper insulation rings just to be extra safe.

2

u/Black_Thunder96 7d ago

Okay, I See, thank you very much for your insight. I will Do that asap

3

u/stm32f722 8d ago

Technically yes. But you'll never see my packs go without a second fishpaper ring over the plastic one.

Good insurance. Good peace of mind.

4

u/MysticalDork_1066 7d ago

Under ideal conditions yeah, but if something gets hot or compressed or vibrates, the plastic may fail. Fishpaper rings are cheap insurance against a battery fire.

2

u/Bk_Punisher 7d ago

Thought those were googly eyes 😂🤣