The Samsung GH82-21668A battery is a device-specific replacement battery assembly for the Galaxy A51. Its assembly designation is EB-BA515ABY, also listed as SVC BATT ASSY-EB-BA515ABY.
The battery uses Li-ion chemistry and is made for the device rather than a universal battery format. The listing specifies compatibility with Samsung Galaxy A51 SM-A515F/DS and SM-A515F/DSN models, making the part reference useful for identifying the matching assembly.
This part is intended for battery replacement in the listed Galaxy A51 variants. No capacity or package contents are specified here.