Battery University is indeed a great resource!

However this is not a lithium polymer battery, and as it’s a 32700, it is not a prismatic or pouch cell either. It is a lithium iron phosphate (LiFePO4) cylindrical battery in metal housing. Battery University does have them listed in their table of chemistries (in case you’re curious), but they don’t seem to have much detailed information. Enough to build a charger though :)

batteryuniversity.com/…/bu-216-summary-table-of-l…

Also some more detailed information here:

batteryuniversity.com/…/bu-205-types-of-lithium-i…

Anyway, thanks for your reference in any case! I’m not responding to criticize you, only to improve the utility of this conversation in case someone else finds it on search :)