For Samsung A51 , A515 - Replacement Battery - Service Pack - GH82 - 21668A

Restore original power cycles and peak voltage stability with this authentic Service Pack (GH82-21668A) battery. This EB-BA515ABY cell features a nominal capacity of 4000mAh (15.40Wh) and is engineered with a high-density lithium-ion chemistry to match the original discharge curve of the Samsung A51. The integrated PCM (Protection Circuit Module) provides essential fail-safes against overcharging, deep discharge, and thermal runaway. This Service Pack unit ensures 100% compatibility with Samsung's 15W Adaptive Fast Charging protocols and provides the accurate fuel gauge reporting required to prevent sudden percentage drops or unexpected shutdowns.