Battery type: Li-Ion - no memory-effect Capacity: 3490 mAh Voltage: 14.4 V Energy: 50 Wh Colour: black Number of cells: 4 Weight: 294 g Compatible with the following device models: Fujitsu LifeBook U758 (U7580MP782DE) Fujitsu LifeBook U938 To ensure compatibility, please check to see whether the battery you are currently using is listed below.