I can offer 4 used Fairphone 2 batteries of varying ages and with different remaining capacities for free.
Some time ago I switched from Fairphone 2 to Fairphone 6.
When I gave my old Fairphone 2 to someone who was interested in it, I wasn’t allowed to include the batteries in the parcel due to legal shipping regulations.
You can pick up the batteries from me by yourself or I can bring you the batteries by bicycle, if you live near Karlsruhe (Germany).
However, due to the complex legal regulations governing the dispatch of batteries, I am unable to post them.