PowerSmart 7.4V 4.4Ah Li-ion 33Wh Replacement VGP-BPL6, VGP-BPS6 Battery for SONY VAIO VGN-UX, VGN-UX007, VGN-UX1, VGN-UX180, VGN-UX180P, VGN-UX18C, VGN-UX1XN, VGN-UX27CN, VGN-UX27GN, VGN-UX280P, VGN-UX280P7, VGN-UX280PK1, VGN-UX28CN, VGN-UX37CN, VGN-UX380CN, VGN-UX380N, VGN-UX38GN, VGN-UX390, VGN-UX390N, VGN-UX490N/C, VGN-UX50, VGN-UX58, VGN-UX70, VGN-UX71, VGN-UX72, VGN-UX90PS, VGN-UX90S, VGN-UX91NS, VGN-UX91S, VGN-UX92NS, VGN-UX92S Remarks: You will be required to install a non-hazardous program to ensure the battery be 100% compatible with your laptop. This program will update the underlying device driver of intelligent lithium battery, including the BIOS. Please read the instruction manual carefully before you start to install the program. Please email us to obtain the required program and an activation key when you receive the item. Battery Type: Lithium-ion (Li-ion) Voltage: 7.40V Capacity: 4400mAh Color: Black Dimension: 75.35 x 67.20 x 37.50 mm || Rate: 33.00 Wh || Weight: 242.00 g Product Type: Replacement Battery (Brand New) || Condition: New, 1 year warranty! Remarks: Please ensure the product(s) that you are going to buy fits the brand, model, part number and dimension (mentioned above) of your device.