Me, a non EE, spent all of lunch break looking at ultracap pack construction
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these are awesome even as usb power banks, especially if you can make them usb-pd.
13x 20Ah 
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@Scepterr final results? 
I’m too impatient
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lmao, it’s not done, but almost
4.18v 18.5Ah
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3.5v to 4.18v and 18.5 amp hour. That’s looking good
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Final Result
3.5v to 4.2v 19Ah
will do discharge test tomorrow morning
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Nice! So if that was from not-even-dead, then should we expect the full 20ah from these bad boys?
Waiting on this 
Thanks for your science @Scepterr!
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yeah 20+ depending where you wanna cut off, at 3.3v maybe 21-22Ah
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interesting find, even on mute you’ll get the gist of what STOBA is, jump to 2:30 to see our battery being assembled at the factory
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Looks like these would make ideal range extender packs rather than main battery packs. Just need a change and ride solution.
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quick update, cell is still at 4.20, indicating low resistance/self discharge. I’ll do discharge capacity test later today.
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Thank you! That is great news! These seem to be quite legit as range packs /power walls.
(If you have any way of testing max discharge, that’d be valuable info, too.)
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Cracked one open and all cells were at 3.50-3.52V. Gonna have to figure this bms out though, they don’t output right away. But look so easy to reconfigure into another pack, and wire a better BMS. 10 AWG wiring inside, made very well.
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Share with the class? 
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lol already working on it, it’ll be easier when I get more, don’t wanna send @Mr.Electronicist poking around the BMS and blow it up 
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They are back in stock (10 currently)
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For those who need Freedom Units for sizing:
0.776 in * 5.575 in * 4.173 in
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@Scepterr
Did you get to do a discharge test?
not yet, busy enjoying an early spring in NYC 
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Going off of the boxes original factory shipping label, these shipped out 10/19/2017. So they really aren’t that old
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