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Designing a 13s4p battery
#11
Sometimes math isn't kind but shows a harsh reality.

That's also one reason why ebike battery packs are packed in a tighter arrangement to get more cells


As an example:
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician

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#12
The Other option is to get power cells, 10A or 20A rated cells but that comes at a price of capacity usually.
Korishan likes this post
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#13
you can have my battery, Confused have a look on my build thread i just posted today. 
i made it from powertool cells, 10A discharge per cell. but even then... i dont know.
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#14
There are nice cases for 52 cells on Aliexpress. You can buy something like that with holders inside for about 35$ incl. shipping
https://www.aliexpress.com/item/Free-Shi...d07d2b03fe
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