When order the R521FB laptop battery, you should open your R521FB laptop, Carefully compare it with your original R521FB battery, checking details such as the battery model, output voltage, connector type, and screw hole positions.
| Battery Code: | NASB21N1818-232WHB2 |
| Battery Name: | R521FB battery |
| Battery Type: | Li-Polymer |
| Battery Volt: | 7.6V |
| Battery Capacity: | 4212mAh, 32.00Wh |
| Battery Color: | Black |
| Battery Weight: | 150g |
| Battery Cells: | Grade A, 2 Cells |
| Battery Condition: | original/genuine 1 Year Warranty |
| Compatible Battery Models: | [ 2ICP6/61/80 ], [ BN1818-2 ], [ B21N1818-1 ], |