Where to get spare 32140 LiFePo4 battery?

I have a Wurkkos TS27 that uses a 32140 LiFePo4 battery. I own exactly one of this size and kind that came with the TS27. I’d like to have at least one spare, but where to get it? Wurkkos themselves don’t have them in their shop. Everywhere I looked so far doesn’t have this size or is out of stock.

I’m in Germany, so I’d like to buy somewhere that easily ships here.