Description: Capacity: 4200mAh;Voltage: 11.55V;Number of cells: 3;Cells technology: Li-Poly;Warranty: 12 months;Cells manufacturer: Greencell;Colour: Black;The possibility of return: Up to 30 days;Product code: HP147;Manufacturer: Greencell;Work time: from 4 up to 10h;Series: Polymer