How to identify PCB Components on Battery BMS

Hello fellas, I'm new to the forum.
I've actively been trying to gather information to develop a fundamental understanding of the batteries I've recently purchased in bulk in order to best use them for several projects I have in mind.

The LIPO cells were used in small laptop builds, and the electronics company was dissolved.

The LIPO cells are in a 1S2P configuration, to which each of the 2 are wired to what I'm assuming is a bms pcb under the wrapping. Manufactured by TCL hyperpower, I've contacted the manufacturer to no avail.

3.8V, 10,400 mah (2x 5200 cells).
part # Eg20-1s10400-t1t2
8 wire harness (3 positive, 3 negative, a yellow and white wire) I believe the white is temp since "T" is labeled on the PCB.

How would I go about learning exactly what this board is, and what each wire/component does to figure out how to best use these when creating a larger battery pack out of these.

I'd like to keep the onboard bms attached if possible since it seems to be wasteful to discard them and just keep the pouches.

Any information would be greatly appreciated. Thank you!