>>1953731I look closer on their amazon page... Looks like they are using a holder that covers negative part on the positive cell, so maybe it is equivalent to having a paper gasket. And fact they use holders is good too, as it ensures there is a separation between cells.
So I'd say it is probably fine. But then, I don't know what's inside for sure.
Personally, I would get LG/Samsung and just disassemble it, disassemble the BMS and inspect if it has any sort of balancing (google translate label on BMS, and then remove heatsink or fiberglass to see if it has low-resistance high power resistors anywhere), and in case it doesn't, just replace the BMS with one that does have all the things. Maybe add the fuse while I'm at it.
After all, what's cheaper, disassemble and spend extra $20 on BMS with balancing, or throw away whole lot of cells just there were no balancing and some cells did cycle from 4.2V to 2.8V, while others from 3.8 to 3V (for example), and because of this weaker cells became weaker, and stronger cells stayed the same.
