EC TECHNOLOGY&reg; High Quality 2 x 1500mAh Li-ion Battery For Samsung Exhibit 4G T759, Exhibit II 4G SGH-T679, Gravity Smart SGH-T589, Samsung Focus Flash SGH-I677, Conquer 4G SPH-D600, Samsung Transform Ultra SPH-M930, Transfix SCH-R730, 1 x Travel Charger Type: Li - ion battery; Voltage: 3.7V. Capacity: 1500mAh, more than 500 charge cycles Compatible with Samsung Exhibit 4G T759,Gravity Smart SGH-T589,Samsung Focus Flash SGH-I677,Conquer 4G SPH-D600,Samsung Transform Ultra SPH-M930,Transfix SCH-R730 package:2xbattery&1Xcharger Charger: output: 4.2V/600mA, USB output 5V/600mA, multi-purpose, multi-connector.