Original Replacement Battery Eb-ba505abn Eb-ba505abu 4000mah For Samsung Galaxy A50 A505f Sm-a505f A30s A30+free Toos - Mobile Phone Batteries - AliExpress
Mysterious batteries. They are 1.2 or 1.5v, doubt they are li-ion, probably NiMh, but maybe even NiCd. Found in a NYKO Charge Station 87000-A50-0107 battery pack for a Nintendo Wii remote. I