OEM AB463651BA 
FOR THE SAMSUNG R451C
Samsung SGH-S390G

This cell phone battery is precision-engineered and rigorously tested for voltage, capacity, compatibility, and safety to meet the original equipment manufacturer specifications.
Cell type: Lithium Ion
Up to 10 days standby time and 3-4 hours talk time!
Integrated Microchip to Prevent Overcharging and Increases Battery Life!