Battery Questions and layout

foot8sativa

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Aug 11, 2021
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Hi all, looking at building a battery for my ebike build, I have a heap of used NCR18650BD cells, I am testing the capacity and internal resistance of each cell atm. The plan is to build it up as a 14s 6p 50amp 18ah pack.
I have a few questions.
What's the best way to layout the cell groups and connections?
Regarding the internal resistance, what is an acceptable difference between cells?
Fuse wire or nickel strip?
Where is a reliable place to get nickel strip? 0.2x10mm? Here in Nz there is not many local suppliers
Cheers in advance.

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