Genuine Dell U6256 X6753 312-0341 Latitude X1 Li-ion 11.1V Type U6256 2400mAH Rechargeable Battery Compatible Part Numbers: U6256 X6753 312-0341 Dell Main Battery Pack 11.1V 2400MAH Brand: Dell Type: Main Battery Pack 11.1V 2400MAH Part Number: U6256