Rechargeable Battery & ChargerChina 6 Cell 11.1V 5200mAh Replacement Laptop Notebook Lithium-Ion Battery for DELL Studio XPS 16 1640 1645 1647 312-0814 X411c U011c W298c Power Supply, Find details about China Laptop Battery, Notebook Battery from 6 Cell 11.1V 5200mAh Replacement Laptop Notebook Lithium-Ion Battery for DELL Studio XPS 16 1640 1645 1647 312-0814 X411c U011c W298c Power Supply