Re-using modules out of Nissn Leaf battery packs

Functional_Artist

Hello all,
I am researching the re-use of individual "Leaf" modules
...ones that have been, removed from Nissan Leaf vehicles

Here is some good info on them,
https://www.youtube.com/watch?v=vYQJatWpBXY&t=20s


* I currently have a 48V 45AH pack, out of a Chevy Volt, on my El Moto
https://www.youtube.com/watch?v=aNEltShaPIE

Here is a 250 E-mile update:

https://www.youtube.com/watch?v=5CpeS5ENA18

But, being that this "Volt" battery pack is only 12S (45V nominal), the top charge voltage is only ~49.8V
…& geared @5.4:1, my top speed is only ~35MPH
…plus, with the 45AH capacity, my range is only ~25 miles

So, it looks like, if I move up to/use (7) of these Leaf modules which would be 14S (52.5V nominal)
...it would have a top charge voltage of ~54V (which should increase my top speed a bit)
...& with a 66AH capacity (my range should increase a bit too)


Maybe something like this (~$475.00)
https://www.ebay.com/itm/Solar-RV-Ni...1&isGTR=1#shId

It's (7) individual Leaf cells
…& a BMS
...plus a printed circuit board (for connecting the BMS)

But, while researching, I've come across some negative (-) info about these cells (like loosing capacity)
https://www.mynissanleaf.com/viewtopic.php?f=27&t=26662

This is very concerning, when contemplating buying these type of cells, individually
...especially, pre-used ones

So, I am interested in any opinion &/or info on re-using these Leaf cells
…& also, this printed circuit board, BMS connection concept (in eBay ad)