Warranty: 12 months; Cells manufacturer: Green Cell; Voltage: 11.1V (10.8V); Number of cells: 6; Cells technology: Li-Ion; Colour: Black; Overdischarge protection: Yes; Overcharge protection: Yes; Product code: FS05; Manufacturer: Green Cell; Size: 205x55x21mm; Weight: 300g; Capacity: 4400 mAh; Popular model: Yes; Fujitsu Esprimo Mobile;