Value Replacement Battery for Dell&nbsp;Studio 15,&nbsp;1535, 1536, 1537, 1555, 1557, - 7200mAh Value Replacement Battery for Dell Studio 15, 1535, 1536, 1537, 1555, 1557, 1559 series Type: Li-ion Voltage: 11.1V Capacity: 7200mAh Color: Dark Grey