When order the X421FQ laptop battery, you should open your X421FQ laptop, Carefully compare it with your original X421FQ battery, checking details such as the battery model, output voltage, connector type, and screw hole positions.
| Battery Code: | NASB31N191142WHB3 |
| Battery Name: | X421FQ battery |
| Battery Type: | Li-Polymer |
| Battery Volt: | 11.55V |
| Battery Capacity: | 3640mAh, 42.00Wh |
| Battery Color: | Black |
| Battery Cells: | Grade A, 3 Cells |
| Battery Condition: | original/genuine 1 Year Warranty |
| Compatible Battery Models: | [ 3ICP5/57/80 ], [ B31N1911 ], [ C31N1911 ], |