When order the Latitude 7640 laptop battery, you should open your Latitude 7640 laptop, Carefully compare it with your original Latitude 7640 battery, checking details such as the battery model, output voltage, connector type, and screw hole positions.
| Battery Code: | NDEWW8N857WHB6 |
| Battery Name: | Latitude 7640 battery |
| Battery Type: | Li-Polymer |
| Battery Volt: | 11.4V |
| Battery Capacity: | 4878mAh, 57.00Wh |
| Battery Color: | Black |
| Battery Cells: | Grade A, 6 Cells |
| Battery Condition: | original/genuine 1 Year Warranty |
| Compatible Battery Models: | [ 047T0 ], [ WW8N8 ], [ 66DWX ], |