11.1V, 3280mAh, Li-Polymer Battery fits Acer, Aspire 391-53314g52add, Aspire S3, 36.408WhBattery Fits Models: Aspire 391 53314g52add, Aspire S3, Aspire S3 Ultrabook 13. 3, Aspire S3 331, Aspire S3 371, Aspire S3 391 Series, Aspire S3 391 323a4g52add, Aspire S3 391 53314g52add, Aspire S3 391 6407, Aspire S3 391 6423, Aspire S3 391 6448, Aspire S3 391 6466, Aspire S3 391 6470, Aspire S3 391 6497, Aspire S3 391 6676, Aspire S3 391 6686, Aspire S3 391 6811, Aspire S3 391 6899, Aspire S3 391 73514g52add, Aspire S3 391 9415, Aspire S3 391 9445,