Since 1965 Lenmar has been building award winning, high quality power related products. Lenmar personally manages the excellence of our products through every aspect from design to production. Fits: Samsung Alias SCH-U740 Replaces: Samsung AB463446FZ, AB463446FZB, AB463446FZBSTD Specifications: Voltage: 3.7V Capacity: 620mAh Chemistry: Lithium Ion Warranty: 1 Year.