The battery builders club

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@ducktaperules

FishPaper rings are not needed on the P42A cell.

The Molicell cells are specifically designed with an abrasion resistant insulator ring on positive side under the wrap, making the pack assembly easier and safer for manufacturers. (This can be seen in black below)

Yes sure you can fit an additional one if you are unsure if your cell features these, but its not needed for packs built with P42A.

Anyways battery construction techniques is a little off topic here. If you’d like to discuss this further lets take it to one of the many battery construction threads.

Why is this the first we are hearing of this lol @jack.luis

I’ve never heard of this either