Compressing swollen Grade B LiFePo4 prismatic cells. Let's experiment. Don't try it at home.
SolarEngineering SolarEngineering
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 Published On Sep 18, 2021

Important:
This is an experiment, not a call to action. Compression might short cells and destroy them.
More details about compression in future videos.

Cells were purchased from the store: https://s.click.aliexpress.com/e/_AY9aHA
seller: liitokala Official Store

Test params:
Cells charged to 3.65V (till charger amps dropped to 100mA)
Cells discharged to 2.5V
Discharge current 75A (+-4A) / 0.13C rate
Ah before compressing - 480Ah
Ah after compressing - 488Ah

Capacity tester: https://amzn.to/3F0PXTZ
As an Amazon Associate I earn from qualifying purchases.


Timecodes:
00:00 - Intro
01:13 - discharge uncompressed cells
01:35 - uncompressed cells discharge result
02:49 - disassembling pack
03:02 - prepare to compress cells
03:18 - adding additional insulation
03:29 - compressing cells
05:15 - compression result
05:33 - building busbars
06:45 - assembling pack
07:10 - charging compressed cells
07:33 - compressed cells discharge result
08:17 - return/refund status
09:39 - compressed cells discharge result
10:26 - outro

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