This is an OEM Samsung battery with the model number AB463446BA and compatibility with the SGH-S275 C414 R250 T255 T259 T249 R100 A137 A107. It is designed for internal use and boasts features that ensure longevity and reliable performance. The brand is Samsung, and it is compatible with only Samsung devices. This battery is a perfect replacement for your old or damaged one, ensuring that your phone stays powered for longer. Its OEM features guarantee that it is of the highest quality and that it will fit perfectly into your device. Get this Samsung battery today and enjoy a long-lasting and reliable phone experience.