I got mine here:
https://www.ebay.com/itm/30238890464...mis&media=COPY
It says it was manufactured in October 2022!
With NiLuJe's Battery Status in KUAL, I can see it is at 1713 mAh. Nominal capacity is around 1750 mAh. So this is a brand new battery, holds the charge well so far.