Lenmar LBFJ94L Laptop Battery for Fujitsu LifeBook N3510 Series, N3511 Series, N3520 Series, N3530 Series Fits LifeBook N3510 Series, N3511 Series, N3520 Series, N3530 Series (See description for additional laptop model fits) Replaces Fujitsu FPCBP94, Fujitsu FPCBP94AP (See description for additional laptop model replaces) 10.8 Volts, 6600mAh Capacity, 71.28Wh Lithium-Ion 1 Year Warranty